Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core patches from Greg Kroah-Hartman:
 "Here is the big driver core merge for 3.9-rc1

  There are two major series here, both of which touch lots of drivers
  all over the kernel, and will cause you some merge conflicts:

   - add a new function called devm_ioremap_resource() to properly be
     able to check return values.

   - remove CONFIG_EXPERIMENTAL

  Other than those patches, there's not much here, some minor fixes and
  updates"

Fix up trivial conflicts

* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
  base: memory: fix soft/hard_offline_page permissions
  drivercore: Fix ordering between deferred_probe and exiting initcalls
  backlight: fix class_find_device() arguments
  TTY: mark tty_get_device call with the proper const values
  driver-core: constify data for class_find_device()
  firmware: Ignore abort check when no user-helper is used
  firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
  firmware: Make user-mode helper optional
  firmware: Refactoring for splitting user-mode helper code
  Driver core: treat unregistered bus_types as having no devices
  watchdog: Convert to devm_ioremap_resource()
  thermal: Convert to devm_ioremap_resource()
  spi: Convert to devm_ioremap_resource()
  power: Convert to devm_ioremap_resource()
  mtd: Convert to devm_ioremap_resource()
  mmc: Convert to devm_ioremap_resource()
  mfd: Convert to devm_ioremap_resource()
  media: Convert to devm_ioremap_resource()
  iommu: Convert to devm_ioremap_resource()
  drm: Convert to devm_ioremap_resource()
  ...

261 files changed, 1118 insertions, 1393 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 78105b3..1a4ed64 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -176,7 +176,6 @@ config ACPI_FAN
 
 config ACPI_DOCK
 	bool "Dock"
-	depends on EXPERIMENTAL
 	help
 	  This driver supports ACPI-controlled docking stations and removable
 	  drive bays such as the IBM Ultrabay and the Dell Module Bay.
@@ -202,7 +201,7 @@ config ACPI_PROCESSOR
 	  the module will be called processor.
 config ACPI_IPMI
 	tristate "IPMI"
-	depends on EXPERIMENTAL && IPMI_SI && IPMI_HANDLER
+	depends on IPMI_SI && IPMI_HANDLER
 	default n
 	help
 	  This driver enables the ACPI to access the BMC controller. And it
@@ -214,14 +213,13 @@ config ACPI_IPMI
 
 config ACPI_HOTPLUG_CPU
 	bool
-	depends on EXPERIMENTAL && ACPI_PROCESSOR && HOTPLUG_CPU
+	depends on ACPI_PROCESSOR && HOTPLUG_CPU
 	select ACPI_CONTAINER
 	default y
 
 config ACPI_PROCESSOR_AGGREGATOR
 	tristate "Processor Aggregator"
 	depends on ACPI_PROCESSOR
-	depends on EXPERIMENTAL
 	depends on X86
 	help
 	  ACPI 4.0 defines processor Aggregator, which enables OS to perform
@@ -337,8 +335,7 @@ config X86_PM_TIMER
 	  systems require this timer. 
 
 config ACPI_CONTAINER
-	bool "Container and Module Devices (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Container and Module Devices"
 	default (ACPI_HOTPLUG_MEMORY || ACPI_HOTPLUG_CPU || ACPI_HOTPLUG_IO)
 	help
 	  This driver supports ACPI Container and Module devices (IDs
diff --git a/drivers/amba/tegra-ahb.c b/drivers/amba/tegra-ahb.c
index 536c166..ab92785 100644
--- a/drivers/amba/tegra-ahb.c
+++ b/drivers/amba/tegra-ahb.c
@@ -20,6 +20,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -257,9 +258,9 @@ static int tegra_ahb_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res)
 		return -ENODEV;
-	ahb->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!ahb->regs)
-		return -EBUSY;
+	ahb->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ahb->regs))
+		return PTR_ERR(ahb->regs);
 
 	ahb->dev = &pdev->dev;
 	platform_set_drvdata(pdev, ahb);
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index e08d322..cdadce2 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -163,7 +163,7 @@ config SATA_QSTOR
 
 config SATA_SX4
 	tristate "Promise SATA SX4 support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for Promise Serial ATA SX4.
 
@@ -390,7 +390,7 @@ config PATA_CS5530
 
 config PATA_CS5535
 	tristate "CS5535 PATA support (Experimental)"
-	depends on PCI && X86 && !X86_64 && EXPERIMENTAL
+	depends on PCI && X86 && !X86_64
 	help
 	  This option enables support for the NatSemi/AMD CS5535
 	  companion chip used with the Geode processor family.
@@ -408,7 +408,7 @@ config PATA_CS5536
 
 config PATA_CYPRESS
 	tristate "Cypress CY82C693 PATA support (Very Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for the Cypress/Contaq CY82C693
 	  chipset found in some Alpha systems
@@ -496,7 +496,7 @@ config PATA_IMX
 
 config PATA_IT8213
 	tristate "IT8213 PATA support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for the ITE 821 PATA
           controllers via the new ATA layer.
@@ -589,7 +589,7 @@ config PATA_OLDPIIX
 
 config PATA_OPTIDMA
 	tristate "OPTI FireStar PATA support (Very Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables DMA/PIO support for the later OPTi
 	  controllers found on some old motherboards and in some
@@ -616,7 +616,7 @@ config PATA_PDC_OLD
 
 config PATA_RADISYS
 	tristate "RADISYS 82600 PATA support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for the RADISYS 82600
 	  PATA controllers via the new ATA layer
@@ -687,7 +687,7 @@ config PATA_SIS
 
 config PATA_TOSHIBA
 	tristate "Toshiba Piccolo support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  Support for the Toshiba Piccolo controllers. Currently only the
 	  primary channel is supported by this driver.
@@ -738,7 +738,7 @@ comment "PIO-only SFF controllers"
 
 config PATA_AT32
 	tristate "Atmel AVR32 PATA support (Experimental)"
-	depends on AVR32 && PLATFORM_AT32AP && EXPERIMENTAL
+	depends on AVR32 && PLATFORM_AT32AP
 	help
 	  This option enables support for the IDE devices on the
 	  Atmel AT32AP platform.
@@ -755,7 +755,7 @@ config PATA_AT91
 
 config PATA_CMD640_PCI
 	tristate "CMD640 PCI PATA support (Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables support for the CMD640 PCI IDE
 	  interface chip. Only the primary channel is currently
@@ -801,7 +801,7 @@ config PATA_NS87410
 
 config PATA_OPTI
 	tristate "OPTI621/6215 PATA support (Very Experimental)"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  This option enables full PIO support for the early Opti ATA
 	  controllers found on some old motherboards.
@@ -881,7 +881,7 @@ config PATA_SAMSUNG_CF
 
 config PATA_WINBOND_VLB
 	tristate "Winbond W83759A VLB PATA support (Experimental)"
-	depends on ISA && EXPERIMENTAL
+	depends on ISA
 	select PATA_LEGACY
 	help
 	  Support for the Winbond W83759A controller on Vesa Local Bus
@@ -909,7 +909,7 @@ config ATA_GENERIC
 
 config PATA_LEGACY
 	tristate "Legacy ISA PATA support (Experimental)"
-	depends on (ISA || PCI) && EXPERIMENTAL
+	depends on (ISA || PCI)
 	help
 	  This option enables support for ISA/VLB/PCI bus legacy PATA
 	  ports and allows them to be accessed via the new ATA layer.
diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index 556222f..c1bfaf4 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -31,6 +31,7 @@
  *   Copyright (C) 2006 Tower Technologies
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -937,9 +938,9 @@ static int ep93xx_pata_probe(struct platform_device *pdev)
 		goto err_rel_gpio;
 	}
 
-	ide_base = devm_request_and_ioremap(&pdev->dev, mem_res);
-	if (!ide_base) {
-		err = -ENXIO;
+	ide_base = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(ide_base)) {
+		err = PTR_ERR(ide_base);
 		goto err_rel_gpio;
 	}
 
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index c8b4539..07abd9d 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -145,6 +145,17 @@ config EXTRA_FIRMWARE_DIR
 	  this option you can point it elsewhere, such as /lib/firmware/ or
 	  some other directory containing the firmware files.
 
+config FW_LOADER_USER_HELPER
+	bool "Fallback user-helper invocation for firmware loading"
+	depends on FW_LOADER
+	default y
+	help
+	  This option enables / disables the invocation of user-helper
+	  (e.g. udev) for loading firmware files as a fallback after the
+	  direct file loading in kernel fails.  The user-mode helper is
+	  no longer required unless you have a special firmware file that
+	  resides in a non-standard path.
+
 config DEBUG_DRIVER
 	bool "Driver Core verbose debug messages"
 	depends on DEBUG_KERNEL
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 24eb078..519865b 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -290,7 +290,7 @@ int bus_for_each_dev(struct bus_type *bus, struct device *start,
 	struct device *dev;
 	int error = 0;
 
-	if (!bus)
+	if (!bus || !bus->p)
 		return -EINVAL;
 
 	klist_iter_init_node(&bus->p->klist_devices, &i,
@@ -324,7 +324,7 @@ struct device *bus_find_device(struct bus_type *bus,
 	struct klist_iter i;
 	struct device *dev;
 
-	if (!bus)
+	if (!bus || !bus->p)
 		return NULL;
 
 	klist_iter_init_node(&bus->p->klist_devices, &i,
@@ -700,12 +700,12 @@ int bus_add_driver(struct device_driver *drv)
 	if (error)
 		goto out_unregister;
 
+	klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers);
 	if (drv->bus->p->drivers_autoprobe) {
 		error = driver_attach(drv);
 		if (error)
 			goto out_unregister;
 	}
-	klist_add_tail(&priv->knode_bus, &bus->p->klist_drivers);
 	module_add_driver(drv->owner, drv);
 
 	error = driver_create_file(drv, &driver_attr_uevent);
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 03243d4..3ce8454 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -420,8 +420,8 @@ EXPORT_SYMBOL_GPL(class_for_each_device);
  * code.  There's no locking restriction.
  */
 struct device *class_find_device(struct class *class, struct device *start,
-				 void *data,
-				 int (*match)(struct device *, void *))
+				 const void *data,
+				 int (*match)(struct device *, const void *))
 {
 	struct class_dev_iter iter;
 	struct device *dev;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index a235085..56536f4b0 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1617,9 +1617,9 @@ struct device *device_create(struct class *class, struct device *parent,
 }
 EXPORT_SYMBOL_GPL(device_create);
 
-static int __match_devt(struct device *dev, void *data)
+static int __match_devt(struct device *dev, const void *data)
 {
-	dev_t *devt = data;
+	const dev_t *devt = data;
 
 	return dev->devt == *devt;
 }
@@ -1685,8 +1685,6 @@ EXPORT_SYMBOL_GPL(device_destroy);
  */
 int device_rename(struct device *dev, const char *new_name)
 {
-	char *old_class_name = NULL;
-	char *new_class_name = NULL;
 	char *old_device_name = NULL;
 	int error;
 
@@ -1717,8 +1715,6 @@ int device_rename(struct device *dev, const char *new_name)
 out:
 	put_device(dev);
 
-	kfree(new_class_name);
-	kfree(old_class_name);
 	kfree(old_device_name);
 
 	return error;
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 65631015..bb5645e 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -173,6 +173,8 @@ static int deferred_probe_initcall(void)
 
 	driver_deferred_probe_enable = true;
 	driver_deferred_probe_trigger();
+	/* Sort as many dependencies as possible before exiting initcalls */
+	flush_workqueue(deferred_wq);
 	return 0;
 }
 late_initcall(deferred_probe_initcall);
diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c
index a3f79c4..ff5b745 100644
--- a/drivers/base/dma-buf.c
+++ b/drivers/base/dma-buf.c
@@ -134,15 +134,14 @@ EXPORT_SYMBOL_GPL(dma_buf_export);
  */
 int dma_buf_fd(struct dma_buf *dmabuf, int flags)
 {
-	int error, fd;
+	int fd;
 
 	if (!dmabuf || !dmabuf->file)
 		return -EINVAL;
 
-	error = get_unused_fd_flags(flags);
-	if (error < 0)
-		return error;
-	fd = error;
+	fd = get_unused_fd_flags(flags);
+	if (fd < 0)
+		return fd;
 
 	fd_install(fd, dmabuf->file);
 
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index b392b35..4a223fe 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -88,11 +88,6 @@ enum {
 	FW_STATUS_ABORT,
 };
 
-enum fw_buf_fmt {
-	VMALLOC_BUF,	/* used in direct loading */
-	PAGE_BUF,	/* used in loading via userspace */
-};
-
 static int loading_timeout = 60;	/* In seconds */
 
 static inline long firmware_loading_timeout(void)
@@ -128,12 +123,14 @@ struct firmware_buf {
 	struct completion completion;
 	struct firmware_cache *fwc;
 	unsigned long status;
-	enum fw_buf_fmt fmt;
 	void *data;
 	size_t size;
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+	bool is_paged_buf;
 	struct page **pages;
 	int nr_pages;
 	int page_array_size;
+#endif
 	char fw_id[];
 };
 
@@ -142,14 +139,6 @@ struct fw_cache_entry {
 	char name[];
 };
 
-struct firmware_priv {
-	struct delayed_work timeout_work;
-	bool nowait;
-	struct device dev;
-	struct firmware_buf *buf;
-	struct firmware *fw;
-};
-
 struct fw_name_devm {
 	unsigned long magic;
 	char name[];
@@ -182,7 +171,6 @@ static struct firmware_buf *__allocate_fw_buf(const char *fw_name,
 	strcpy(buf->fw_id, fw_name);
 	buf->fwc = fwc;
 	init_completion(&buf->completion);
-	buf->fmt = VMALLOC_BUF;
 
 	pr_debug("%s: fw-%s buf=%p\n", __func__, fw_name, buf);
 
@@ -240,7 +228,6 @@ static void __fw_free_buf(struct kref *ref)
 {
 	struct firmware_buf *buf = to_fwbuf(ref);
 	struct firmware_cache *fwc = buf->fwc;
-	int i;
 
 	pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
 		 __func__, buf->fw_id, buf, buf->data,
@@ -249,13 +236,15 @@ static void __fw_free_buf(struct kref *ref)
 	list_del(&buf->list);
 	spin_unlock(&fwc->lock);
 
-
-	if (buf->fmt == PAGE_BUF) {
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+	if (buf->is_paged_buf) {
+		int i;
 		vunmap(buf->data);
 		for (i = 0; i < buf->nr_pages; i++)
 			__free_page(buf->pages[i]);
 		kfree(buf->pages);
 	} else
+#endif
 		vfree(buf->data);
 	kfree(buf);
 }
@@ -319,7 +308,8 @@ static bool fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf
 	return true;
 }
 
-static bool fw_get_filesystem_firmware(struct firmware_buf *buf)
+static bool fw_get_filesystem_firmware(struct device *device,
+				       struct firmware_buf *buf)
 {
 	int i;
 	bool success = false;
@@ -343,9 +333,114 @@ static bool fw_get_filesystem_firmware(struct firmware_buf *buf)
 			break;
 	}
 	__putname(path);
+
+	if (success) {
+		dev_dbg(device, "firmware: direct-loading firmware %s\n",
+			buf->fw_id);
+		mutex_lock(&fw_lock);
+		set_bit(FW_STATUS_DONE, &buf->status);
+		complete_all(&buf->completion);
+		mutex_unlock(&fw_lock);
+	}
+
 	return success;
 }
 
+/* firmware holds the ownership of pages */
+static void firmware_free_data(const struct firmware *fw)
+{
+	/* Loaded directly? */
+	if (!fw->priv) {
+		vfree(fw->data);
+		return;
+	}
+	fw_free_buf(fw->priv);
+}
+
+/* store the pages buffer info firmware from buf */
+static void fw_set_page_data(struct firmware_buf *buf, struct firmware *fw)
+{
+	fw->priv = buf;
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+	fw->pages = buf->pages;
+#endif
+	fw->size = buf->size;
+	fw->data = buf->data;
+
+	pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
+		 __func__, buf->fw_id, buf, buf->data,
+		 (unsigned int)buf->size);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static void fw_name_devm_release(struct device *dev, void *res)
+{
+	struct fw_name_devm *fwn = res;
+
+	if (fwn->magic == (unsigned long)&fw_cache)
+		pr_debug("%s: fw_name-%s devm-%p released\n",
+				__func__, fwn->name, res);
+}
+
+static int fw_devm_match(struct device *dev, void *res,
+		void *match_data)
+{
+	struct fw_name_devm *fwn = res;
+
+	return (fwn->magic == (unsigned long)&fw_cache) &&
+		!strcmp(fwn->name, match_data);
+}
+
+static struct fw_name_devm *fw_find_devm_name(struct device *dev,
+		const char *name)
+{
+	struct fw_name_devm *fwn;
+
+	fwn = devres_find(dev, fw_name_devm_release,
+			  fw_devm_match, (void *)name);
+	return fwn;
+}
+
+/* add firmware name into devres list */
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+	struct fw_name_devm *fwn;
+
+	fwn = fw_find_devm_name(dev, name);
+	if (fwn)
+		return 1;
+
+	fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm) +
+			   strlen(name) + 1, GFP_KERNEL);
+	if (!fwn)
+		return -ENOMEM;
+
+	fwn->magic = (unsigned long)&fw_cache;
+	strcpy(fwn->name, name);
+	devres_add(dev, fwn);
+
+	return 0;
+}
+#else
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+	return 0;
+}
+#endif
+
+
+/*
+ * user-mode helper code
+ */
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+struct firmware_priv {
+	struct delayed_work timeout_work;
+	bool nowait;
+	struct device dev;
+	struct firmware_buf *buf;
+	struct firmware *fw;
+};
+
 static struct firmware_priv *to_firmware_priv(struct device *dev)
 {
 	return container_of(dev, struct firmware_priv, dev);
@@ -359,6 +454,9 @@ static void fw_load_abort(struct firmware_priv *fw_priv)
 	complete_all(&buf->completion);
 }
 
+#define is_fw_load_aborted(buf)	\
+	test_bit(FW_STATUS_ABORT, &(buf)->status)
+
 static ssize_t firmware_timeout_show(struct class *class,
 				     struct class_attribute *attr,
 				     char *buf)
@@ -435,17 +533,6 @@ static ssize_t firmware_loading_show(struct device *dev,
 	return sprintf(buf, "%d\n", loading);
 }
 
-/* firmware holds the ownership of pages */
-static void firmware_free_data(const struct firmware *fw)
-{
-	/* Loaded directly? */
-	if (!fw->priv) {
-		vfree(fw->data);
-		return;
-	}
-	fw_free_buf(fw->priv);
-}
-
 /* Some architectures don't have PAGE_KERNEL_RO */
 #ifndef PAGE_KERNEL_RO
 #define PAGE_KERNEL_RO PAGE_KERNEL
@@ -454,7 +541,7 @@ static void firmware_free_data(const struct firmware *fw)
 /* one pages buffer should be mapped/unmapped only once */
 static int fw_map_pages_buf(struct firmware_buf *buf)
 {
-	if (buf->fmt != PAGE_BUF)
+	if (!buf->is_paged_buf)
 		return 0;
 
 	if (buf->data)
@@ -727,171 +814,16 @@ exit:
 	return fw_priv;
 }
 
-/* store the pages buffer info firmware from buf */
-static void fw_set_page_data(struct firmware_buf *buf, struct firmware *fw)
-{
-	fw->priv = buf;
-	fw->pages = buf->pages;
-	fw->size = buf->size;
-	fw->data = buf->data;
-
-	pr_debug("%s: fw-%s buf=%p data=%p size=%u\n",
-		 __func__, buf->fw_id, buf, buf->data,
-		 (unsigned int)buf->size);
-}
-
-#ifdef CONFIG_PM_SLEEP
-static void fw_name_devm_release(struct device *dev, void *res)
-{
-	struct fw_name_devm *fwn = res;
-
-	if (fwn->magic == (unsigned long)&fw_cache)
-		pr_debug("%s: fw_name-%s devm-%p released\n",
-				__func__, fwn->name, res);
-}
-
-static int fw_devm_match(struct device *dev, void *res,
-		void *match_data)
-{
-	struct fw_name_devm *fwn = res;
-
-	return (fwn->magic == (unsigned long)&fw_cache) &&
-		!strcmp(fwn->name, match_data);
-}
-
-static struct fw_name_devm *fw_find_devm_name(struct device *dev,
-		const char *name)
-{
-	struct fw_name_devm *fwn;
-
-	fwn = devres_find(dev, fw_name_devm_release,
-			  fw_devm_match, (void *)name);
-	return fwn;
-}
-
-/* add firmware name into devres list */
-static int fw_add_devm_name(struct device *dev, const char *name)
-{
-	struct fw_name_devm *fwn;
-
-	fwn = fw_find_devm_name(dev, name);
-	if (fwn)
-		return 1;
-
-	fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm) +
-			   strlen(name) + 1, GFP_KERNEL);
-	if (!fwn)
-		return -ENOMEM;
-
-	fwn->magic = (unsigned long)&fw_cache;
-	strcpy(fwn->name, name);
-	devres_add(dev, fwn);
-
-	return 0;
-}
-#else
-static int fw_add_devm_name(struct device *dev, const char *name)
-{
-	return 0;
-}
-#endif
-
-static void _request_firmware_cleanup(const struct firmware **firmware_p)
-{
-	release_firmware(*firmware_p);
-	*firmware_p = NULL;
-}
-
-static struct firmware_priv *
-_request_firmware_prepare(const struct firmware **firmware_p, const char *name,
-			  struct device *device, bool uevent, bool nowait)
-{
-	struct firmware *firmware;
-	struct firmware_priv *fw_priv = NULL;
-	struct firmware_buf *buf;
-	int ret;
-
-	if (!firmware_p)
-		return ERR_PTR(-EINVAL);
-
-	*firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
-	if (!firmware) {
-		dev_err(device, "%s: kmalloc(struct firmware) failed\n",
-			__func__);
-		return ERR_PTR(-ENOMEM);
-	}
-
-	if (fw_get_builtin_firmware(firmware, name)) {
-		dev_dbg(device, "firmware: using built-in firmware %s\n", name);
-		return NULL;
-	}
-
-	ret = fw_lookup_and_allocate_buf(name, &fw_cache, &buf);
-	if (!ret)
-		fw_priv = fw_create_instance(firmware, name, device,
-				uevent, nowait);
-
-	if (IS_ERR(fw_priv) || ret < 0) {
-		kfree(firmware);
-		*firmware_p = NULL;
-		return ERR_PTR(-ENOMEM);
-	} else if (fw_priv) {
-		fw_priv->buf = buf;
-
-		/*
-		 * bind with 'buf' now to avoid warning in failure path
-		 * of requesting firmware.
-		 */
-		firmware->priv = buf;
-		return fw_priv;
-	}
-
-	/* share the cached buf, which is inprogessing or completed */
- check_status:
-	mutex_lock(&fw_lock);
-	if (test_bit(FW_STATUS_ABORT, &buf->status)) {
-		fw_priv = ERR_PTR(-ENOENT);
-		firmware->priv = buf;
-		_request_firmware_cleanup(firmware_p);
-		goto exit;
-	} else if (test_bit(FW_STATUS_DONE, &buf->status)) {
-		fw_priv = NULL;
-		fw_set_page_data(buf, firmware);
-		goto exit;
-	}
-	mutex_unlock(&fw_lock);
-	wait_for_completion(&buf->completion);
-	goto check_status;
-
-exit:
-	mutex_unlock(&fw_lock);
-	return fw_priv;
-}
-
+/* load a firmware via user helper */
 static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
 				  long timeout)
 {
 	int retval = 0;
 	struct device *f_dev = &fw_priv->dev;
 	struct firmware_buf *buf = fw_priv->buf;
-	struct firmware_cache *fwc = &fw_cache;
-	int direct_load = 0;
-
-	/* try direct loading from fs first */
-	if (fw_get_filesystem_firmware(buf)) {
-		dev_dbg(f_dev->parent, "firmware: direct-loading"
-			" firmware %s\n", buf->fw_id);
-
-		mutex_lock(&fw_lock);
-		set_bit(FW_STATUS_DONE, &buf->status);
-		mutex_unlock(&fw_lock);
-		complete_all(&buf->completion);
-		direct_load = 1;
-		goto handle_fw;
-	}
 
 	/* fall back on userspace loading */
-	buf->fmt = PAGE_BUF;
+	buf->is_paged_buf = true;
 
 	dev_set_uevent_suppress(f_dev, true);
 
@@ -929,47 +861,196 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
 
 	cancel_delayed_work_sync(&fw_priv->timeout_work);
 
-handle_fw:
+	fw_priv->buf = NULL;
+
+	device_remove_file(f_dev, &dev_attr_loading);
+err_del_bin_attr:
+	device_remove_bin_file(f_dev, &firmware_attr_data);
+err_del_dev:
+	device_del(f_dev);
+err_put_dev:
+	put_device(f_dev);
+	return retval;
+}
+
+static int fw_load_from_user_helper(struct firmware *firmware,
+				    const char *name, struct device *device,
+				    bool uevent, bool nowait, long timeout)
+{
+	struct firmware_priv *fw_priv;
+
+	fw_priv = fw_create_instance(firmware, name, device, uevent, nowait);
+	if (IS_ERR(fw_priv))
+		return PTR_ERR(fw_priv);
+
+	fw_priv->buf = firmware->priv;
+	return _request_firmware_load(fw_priv, uevent, timeout);
+}
+#else /* CONFIG_FW_LOADER_USER_HELPER */
+static inline int
+fw_load_from_user_helper(struct firmware *firmware, const char *name,
+			 struct device *device, bool uevent, bool nowait,
+			 long timeout)
+{
+	return -ENOENT;
+}
+
+/* No abort during direct loading */
+#define is_fw_load_aborted(buf) false
+
+#endif /* CONFIG_FW_LOADER_USER_HELPER */
+
+
+/* wait until the shared firmware_buf becomes ready (or error) */
+static int sync_cached_firmware_buf(struct firmware_buf *buf)
+{
+	int ret = 0;
+
+	mutex_lock(&fw_lock);
+	while (!test_bit(FW_STATUS_DONE, &buf->status)) {
+		if (is_fw_load_aborted(buf)) {
+			ret = -ENOENT;
+			break;
+		}
+		mutex_unlock(&fw_lock);
+		wait_for_completion(&buf->completion);
+		mutex_lock(&fw_lock);
+	}
+	mutex_unlock(&fw_lock);
+	return ret;
+}
+
+/* prepare firmware and firmware_buf structs;
+ * return 0 if a firmware is already assigned, 1 if need to load one,
+ * or a negative error code
+ */
+static int
+_request_firmware_prepare(struct firmware **firmware_p, const char *name,
+			  struct device *device)
+{
+	struct firmware *firmware;
+	struct firmware_buf *buf;
+	int ret;
+
+	*firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
+	if (!firmware) {
+		dev_err(device, "%s: kmalloc(struct firmware) failed\n",
+			__func__);
+		return -ENOMEM;
+	}
+
+	if (fw_get_builtin_firmware(firmware, name)) {
+		dev_dbg(device, "firmware: using built-in firmware %s\n", name);
+		return 0; /* assigned */
+	}
+
+	ret = fw_lookup_and_allocate_buf(name, &fw_cache, &buf);
+
+	/*
+	 * bind with 'buf' now to avoid warning in failure path
+	 * of requesting firmware.
+	 */
+	firmware->priv = buf;
+
+	if (ret > 0) {
+		ret = sync_cached_firmware_buf(buf);
+		if (!ret) {
+			fw_set_page_data(buf, firmware);
+			return 0; /* assigned */
+		}
+	}
+
+	if (ret < 0)
+		return ret;
+	return 1; /* need to load */
+}
+
+static int assign_firmware_buf(struct firmware *fw, struct device *device)
+{
+	struct firmware_buf *buf = fw->priv;
+
 	mutex_lock(&fw_lock);
-	if (!buf->size || test_bit(FW_STATUS_ABORT, &buf->status))
-		retval = -ENOENT;
+	if (!buf->size || is_fw_load_aborted(buf)) {
+		mutex_unlock(&fw_lock);
+		return -ENOENT;
+	}
 
 	/*
 	 * add firmware name into devres list so that we can auto cache
 	 * and uncache firmware for device.
 	 *
-	 * f_dev->parent may has been deleted already, but the problem
+	 * device may has been deleted already, but the problem
 	 * should be fixed in devres or driver core.
 	 */
-	if (!retval && f_dev->parent)
-		fw_add_devm_name(f_dev->parent, buf->fw_id);
+	if (device)
+		fw_add_devm_name(device, buf->fw_id);
 
 	/*
 	 * After caching firmware image is started, let it piggyback
 	 * on request firmware.
 	 */
-	if (!retval && fwc->state == FW_LOADER_START_CACHE) {
+	if (buf->fwc->state == FW_LOADER_START_CACHE) {
 		if (fw_cache_piggyback_on_request(buf->fw_id))
 			kref_get(&buf->ref);
 	}
 
 	/* pass the pages buffer to driver at the last minute */
-	fw_set_page_data(buf, fw_priv->fw);
-
-	fw_priv->buf = NULL;
+	fw_set_page_data(buf, fw);
 	mutex_unlock(&fw_lock);
+	return 0;
+}
 
-	if (direct_load)
-		goto err_put_dev;
+/* called from request_firmware() and request_firmware_work_func() */
+static int
+_request_firmware(const struct firmware **firmware_p, const char *name,
+		  struct device *device, bool uevent, bool nowait)
+{
+	struct firmware *fw;
+	long timeout;
+	int ret;
 
-	device_remove_file(f_dev, &dev_attr_loading);
-err_del_bin_attr:
-	device_remove_bin_file(f_dev, &firmware_attr_data);
-err_del_dev:
-	device_del(f_dev);
-err_put_dev:
-	put_device(f_dev);
-	return retval;
+	if (!firmware_p)
+		return -EINVAL;
+
+	ret = _request_firmware_prepare(&fw, name, device);
+	if (ret <= 0) /* error or already assigned */
+		goto out;
+
+	ret = 0;
+	timeout = firmware_loading_timeout();
+	if (nowait) {
+		timeout = usermodehelper_read_lock_wait(timeout);
+		if (!timeout) {
+			dev_dbg(device, "firmware: %s loading timed out\n",
+				name);
+			ret = -EBUSY;
+			goto out;
+		}
+	} else {
+		ret = usermodehelper_read_trylock();
+		if (WARN_ON(ret)) {
+			dev_err(device, "firmware: %s will not be loaded\n",
+				name);
+			goto out;
+		}
+	}
+
+	if (!fw_get_filesystem_firmware(device, fw->priv))
+		ret = fw_load_from_user_helper(fw, name, device,
+					       uevent, nowait, timeout);
+	if (!ret)
+		ret = assign_firmware_buf(fw, device);
+
+	usermodehelper_read_unlock();
+
+ out:
+	if (ret < 0) {
+		release_firmware(fw);
+		fw = NULL;
+	}
+
+	*firmware_p = fw;
+	return ret;
 }
 
 /**
@@ -996,26 +1077,7 @@ int
 request_firmware(const struct firmware **firmware_p, const char *name,
                  struct device *device)
 {
-	struct firmware_priv *fw_priv;
-	int ret;
-
-	fw_priv = _request_firmware_prepare(firmware_p, name, device, true,
-					    false);
-	if (IS_ERR_OR_NULL(fw_priv))
-		return PTR_RET(fw_priv);
-
-	ret = usermodehelper_read_trylock();
-	if (WARN_ON(ret)) {
-		dev_err(device, "firmware: %s will not be loaded\n", name);
-	} else {
-		ret = _request_firmware_load(fw_priv, true,
-					firmware_loading_timeout());
-		usermodehelper_read_unlock();
-	}
-	if (ret)
-		_request_firmware_cleanup(firmware_p);
-
-	return ret;
+	return _request_firmware(firmware_p, name, device, true, false);
 }
 
 /**
@@ -1046,33 +1108,13 @@ static void request_firmware_work_func(struct work_struct *work)
 {
 	struct firmware_work *fw_work;
 	const struct firmware *fw;
-	struct firmware_priv *fw_priv;
-	long timeout;
-	int ret;
 
 	fw_work = container_of(work, struct firmware_work, work);
-	fw_priv = _request_firmware_prepare(&fw, fw_work->name, fw_work->device,
-			fw_work->uevent, true);
-	if (IS_ERR_OR_NULL(fw_priv)) {
-		ret = PTR_RET(fw_priv);
-		goto out;
-	}
-
-	timeout = usermodehelper_read_lock_wait(firmware_loading_timeout());
-	if (timeout) {
-		ret = _request_firmware_load(fw_priv, fw_work->uevent, timeout);
-		usermodehelper_read_unlock();
-	} else {
-		dev_dbg(fw_work->device, "firmware: %s loading timed out\n",
-			fw_work->name);
-		ret = -EAGAIN;
-	}
-	if (ret)
-		_request_firmware_cleanup(&fw);
 
- out:
+	_request_firmware(&fw, fw_work->name, fw_work->device,
+			  fw_work->uevent, true);
 	fw_work->cont(fw, fw_work->context);
-	put_device(fw_work->device);
+	put_device(fw_work->device); /* taken in request_firmware_nowait() */
 
 	module_put(fw_work->module);
 	kfree(fw_work);
@@ -1474,7 +1516,11 @@ static void __init fw_cache_init(void)
 static int __init firmware_class_init(void)
 {
 	fw_cache_init();
+#ifdef CONFIG_FW_LOADER_USER_HELPER
 	return class_register(&firmware_class);
+#else
+	return 0;
+#endif
 }
 
 static void __exit firmware_class_exit(void)
@@ -1483,7 +1529,9 @@ static void __exit firmware_class_exit(void)
 	unregister_syscore_ops(&fw_syscore_ops);
 	unregister_pm_notifier(&fw_cache.pm_notify);
 #endif
+#ifdef CONFIG_FW_LOADER_USER_HELPER
 	class_unregister(&firmware_class);
+#endif
 }
 
 fs_initcall(firmware_class_init);
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 987604d..83d0b17 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -494,8 +494,8 @@ store_hard_offline_page(struct device *dev,
 	return ret ? ret : count;
 }
 
-static DEVICE_ATTR(soft_offline_page, 0644, NULL, store_soft_offline_page);
-static DEVICE_ATTR(hard_offline_page, 0644, NULL, store_hard_offline_page);
+static DEVICE_ATTR(soft_offline_page, S_IWUSR, NULL, store_soft_offline_page);
+static DEVICE_ATTR(hard_offline_page, S_IWUSR, NULL, store_hard_offline_page);
 
 static __init int memory_fail_init(void)
 {
diff --git a/drivers/block/paride/Kconfig b/drivers/block/paride/Kconfig
index 28cf308..efefb5a 100644
--- a/drivers/block/paride/Kconfig
+++ b/drivers/block/paride/Kconfig
@@ -205,8 +205,8 @@ config PARIDE_EPAT
 	  support.
 
 config PARIDE_EPATC8
-	bool "Support c7/c8 chips (EXPERIMENTAL)"
-	depends on PARIDE_EPAT && EXPERIMENTAL
+	bool "Support c7/c8 chips"
+	depends on PARIDE_EPAT
 	help
 	  This option enables support for the newer Shuttle EP1284 (aka c7 and
 	  c8) chip. You need this if you are using any recent Imation SuperDisk
diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c
index 48bbfec..4673fc4 100644
--- a/drivers/char/hw_random/exynos-rng.c
+++ b/drivers/char/hw_random/exynos-rng.c
@@ -104,6 +104,7 @@ static int exynos_read(struct hwrng *rng, void *buf,
 static int exynos_rng_probe(struct platform_device *pdev)
 {
 	struct exynos_rng *exynos_rng;
+	struct resource *res;
 
 	exynos_rng = devm_kzalloc(&pdev->dev, sizeof(struct exynos_rng),
 					GFP_KERNEL);
@@ -120,10 +121,10 @@ static int exynos_rng_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	exynos_rng->mem = devm_request_and_ioremap(&pdev->dev,
-			platform_get_resource(pdev, IORESOURCE_MEM, 0));
-	if (!exynos_rng->mem)
-		return -EBUSY;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	exynos_rng->mem = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(exynos_rng->mem))
+		return PTR_ERR(exynos_rng->mem);
 
 	platform_set_drvdata(pdev, exynos_rng);
 
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index d8c54e2..749dc16 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -124,9 +124,9 @@ static int omap_rng_probe(struct platform_device *pdev)
 		goto err_ioremap;
 	}
 
-	priv->base = devm_request_and_ioremap(&pdev->dev, priv->mem_res);
-	if (!priv->base) {
-		ret = -ENOMEM;
+	priv->base = devm_ioremap_resource(&pdev->dev, priv->mem_res);
+	if (IS_ERR(priv->base)) {
+		ret = PTR_ERR(priv->base);
 		goto err_ioremap;
 	}
 	dev_set_drvdata(&pdev->dev, priv);
diff --git a/drivers/char/hw_random/tx4939-rng.c b/drivers/char/hw_random/tx4939-rng.c
index de473ef..3099198 100644
--- a/drivers/char/hw_random/tx4939-rng.c
+++ b/drivers/char/hw_random/tx4939-rng.c
@@ -7,6 +7,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -115,9 +116,9 @@ static int __init tx4939_rng_probe(struct platform_device *dev)
 	rngdev = devm_kzalloc(&dev->dev, sizeof(*rngdev), GFP_KERNEL);
 	if (!rngdev)
 		return -ENOMEM;
-	rngdev->base = devm_request_and_ioremap(&dev->dev, r);
-	if (!rngdev->base)
-		return -EBUSY;
+	rngdev->base = devm_ioremap_resource(&dev->dev, r);
+	if (IS_ERR(rngdev->base))
+		return PTR_ERR(rngdev->base);
 
 	rngdev->rng.name = dev_name(&dev->dev);
 	rngdev->rng.data_present = tx4939_rng_data_present;
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 7f333af..030ddf6 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -21,8 +21,8 @@ config ARM_S3C2416_CPUFREQ
 	  If in doubt, say N.
 
 config ARM_S3C2416_CPUFREQ_VCORESCALE
-	bool "Allow voltage scaling for S3C2416 arm core (EXPERIMENTAL)"
-	depends on ARM_S3C2416_CPUFREQ && REGULATOR && EXPERIMENTAL
+	bool "Allow voltage scaling for S3C2416 arm core"
+	depends on ARM_S3C2416_CPUFREQ && REGULATOR
 	help
 	  Enable CPU voltage scaling when entering the dvs mode.
 	  It uses information gathered through existing hardware and
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index 98e5abb..d7dc0ed 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -187,7 +187,7 @@ config X86_SPEEDSTEP_ICH
 config X86_SPEEDSTEP_SMI
 	tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)"
 	select CPU_FREQ_TABLE
-	depends on X86_32 && EXPERIMENTAL
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for certain mobile Intel Pentium III
 	  (Coppermine), all mobile Intel Pentium III-M (Tualatin)
@@ -219,7 +219,7 @@ config X86_P4_CLOCKMOD
 
 config X86_CPUFREQ_NFORCE2
 	tristate "nVidia nForce2 FSB changing"
-	depends on X86_32 && EXPERIMENTAL
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for FSB changing on nVidia nForce2
 	  platforms.
@@ -255,7 +255,7 @@ config X86_LONGHAUL
 config X86_E_POWERSAVER
 	tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)"
 	select CPU_FREQ_TABLE
-	depends on X86_32 && EXPERIMENTAL
+	depends on X86_32
 	help
 	  This adds the CPUFreq driver for VIA C7 processors.  However, this driver
 	  does not have any safeguards to prevent operating the CPU out of spec
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 3e8ba02..b33d1f6 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -14,6 +14,7 @@
 #include <linux/delay.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -1489,9 +1490,9 @@ static int dw_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	regs = devm_request_and_ioremap(&pdev->dev, io);
-	if (!regs)
-		return -EBUSY;
+	regs = devm_ioremap_resource(&pdev->dev, io);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
 
 	dw_params = dma_read_byaddr(regs, DW_PARAMS);
 	autocfg = dw_params >> DW_PARAMS_EN & 0x1;
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index a7dcf78..70b8975 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -14,6 +14,7 @@
  * http://www.opensource.org/licenses/gpl-license.html
  * http://www.gnu.org/copyleft/gpl.html
  */
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/mm.h>
@@ -1010,9 +1011,9 @@ static int __init imxdma_probe(struct platform_device *pdev)
 	imxdma->devtype = pdev->id_entry->driver_data;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	imxdma->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!imxdma->base)
-		return -EADDRNOTAVAIL;
+	imxdma->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(imxdma->base))
+		return PTR_ERR(imxdma->base);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index c6d98c0..dc74665 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -5,6 +5,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -782,9 +783,9 @@ static int mmp_pdma_probe(struct platform_device *op)
 	if (!iores)
 		return -EINVAL;
 
-	pdev->base = devm_request_and_ioremap(pdev->dev, iores);
-	if (!pdev->base)
-		return -EADDRNOTAVAIL;
+	pdev->base = devm_ioremap_resource(pdev->dev, iores);
+	if (IS_ERR(pdev->base))
+		return PTR_ERR(pdev->base);
 
 	of_id = of_match_device(mmp_pdma_dt_ids, pdev->dev);
 	if (of_id)
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index a9f1cd5..43d5a6c 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -9,6 +9,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -547,9 +548,9 @@ static int mmp_tdma_probe(struct platform_device *pdev)
 	if (!iores)
 		return -EINVAL;
 
-	tdev->base = devm_request_and_ioremap(&pdev->dev, iores);
-	if (!tdev->base)
-		return -EADDRNOTAVAIL;
+	tdev->base = devm_ioremap_resource(&pdev->dev, iores);
+	if (IS_ERR(tdev->base))
+		return PTR_ERR(tdev->base);
 
 	INIT_LIST_HEAD(&tdev->device.channels);
 
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 3cad856..58c1896 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -21,6 +21,7 @@
 #include <linux/delay.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -1240,12 +1241,9 @@ static int tegra_dma_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	tdma->base_addr = devm_request_and_ioremap(&pdev->dev, res);
-	if (!tdma->base_addr) {
-		dev_err(&pdev->dev,
-			"Cannot request memregion/iomap dma address\n");
-		return -EADDRNOTAVAIL;
-	}
+	tdma->base_addr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(tdma->base_addr))
+		return PTR_ERR(tdma->base_addr);
 
 	tdma->dma_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(tdma->dma_clk)) {
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 6671992..acb709b 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -158,7 +158,7 @@ config EDAC_I3000
 
 config EDAC_I3200
 	tristate "Intel 3200"
-	depends on EDAC_MM_EDAC && PCI && X86 && EXPERIMENTAL
+	depends on EDAC_MM_EDAC && PCI && X86
 	help
 	  Support for error detection and correction on the Intel
 	  3200 and 3210 server chipsets.
@@ -224,7 +224,7 @@ config EDAC_I7300
 config EDAC_SBRIDGE
 	tristate "Intel Sandy-Bridge Integrated MC"
 	depends on EDAC_MM_EDAC && PCI && X86_64 && X86_MCE_INTEL
-	depends on PCI_MMCONFIG && EXPERIMENTAL
+	depends on PCI_MMCONFIG
 	help
 	  Support for error detection and correction the Intel
 	  Sandy Bridge Integrated Memory Controller.
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index e5116fa8..1855a6f 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -66,7 +66,7 @@ config DEBUG_GPIO
 
 config GPIO_SYSFS
 	bool "/sys/class/gpio/... (sysfs interface)"
-	depends on SYSFS && EXPERIMENTAL
+	depends on SYSFS
 	help
 	  Say Y here to add a sysfs interface for GPIOs.
 
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 6819d63..7472182 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -33,6 +33,7 @@
  *   interrupts.
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/gpio.h>
 #include <linux/irq.h>
@@ -544,11 +545,9 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 	mvchip->chip.of_node = np;
 
 	spin_lock_init(&mvchip->lock);
-	mvchip->membase = devm_request_and_ioremap(&pdev->dev, res);
-	if (! mvchip->membase) {
-		dev_err(&pdev->dev, "Cannot ioremap\n");
-		return -ENOMEM;
-	}
+	mvchip->membase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(mvchip->membase))
+		return PTR_ERR(mvchip->membase);
 
 	/* The Armada XP has a second range of registers for the
 	 * per-CPU registers */
@@ -559,11 +558,10 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 			return -ENODEV;
 		}
 
-		mvchip->percpu_membase = devm_request_and_ioremap(&pdev->dev, res);
-		if (! mvchip->percpu_membase) {
-			dev_err(&pdev->dev, "Cannot ioremap\n");
-			return -ENOMEM;
-		}
+		mvchip->percpu_membase = devm_ioremap_resource(&pdev->dev,
+							       res);
+		if (IS_ERR(mvchip->percpu_membase)) 
+			return PTR_ERR(mvchip->percpu_membase);
 	}
 
 	/*
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index fa2a63c..45d97c4 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -20,6 +20,7 @@
  * MA  02110-1301, USA.
  */
 
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -253,12 +254,14 @@ static int mxs_gpio_probe(struct platform_device *pdev)
 			parent = of_get_parent(np);
 			base = of_iomap(parent, 0);
 			of_node_put(parent);
+			if (!base)
+				return -EADDRNOTAVAIL;
 		} else {
 			iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-			base = devm_request_and_ioremap(&pdev->dev, iores);
+			base = devm_ioremap_resource(&pdev->dev, iores);
+			if (IS_ERR(base))
+				return PTR_ERR(base);
 		}
-		if (!base)
-			return -EADDRNOTAVAIL;
 	}
 	port->base = base;
 
diff --git a/drivers/gpio/gpio-spear-spics.c b/drivers/gpio/gpio-spear-spics.c
index 5f45fc4..7a4bf7c 100644
--- a/drivers/gpio/gpio-spear-spics.c
+++ b/drivers/gpio/gpio-spear-spics.c
@@ -140,11 +140,9 @@ static int spics_gpio_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	spics->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!spics->base) {
-		dev_err(&pdev->dev, "request and ioremap fail\n");
-		return -ENOMEM;
-	}
+	spics->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(spics->base))
+		return PTR_ERR(spics->base);
 
 	if (of_property_read_u32(np, "st-spics,peripcfg-reg",
 				&spics->perip_cfg))
diff --git a/drivers/gpio/gpio-stp-xway.c b/drivers/gpio/gpio-stp-xway.c
index 85841ee7..c20e051 100644
--- a/drivers/gpio/gpio-stp-xway.c
+++ b/drivers/gpio/gpio-stp-xway.c
@@ -214,11 +214,10 @@ static int xway_stp_probe(struct platform_device *pdev)
 	if (!chip)
 		return -ENOMEM;
 
-	chip->virt = devm_request_and_ioremap(&pdev->dev, res);
-	if (!chip->virt) {
-		dev_err(&pdev->dev, "failed to remap STP memory\n");
-		return -ENOMEM;
-	}
+	chip->virt = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(chip->virt))
+		return PTR_ERR(chip->virt);
+	
 	chip->gc.dev = &pdev->dev;
 	chip->gc.label = "stp-xway";
 	chip->gc.direction_output = xway_stp_dir_out;
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 63cb643..414ad91 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -17,6 +17,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
@@ -450,11 +451,9 @@ static int tegra_gpio_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!regs) {
-		dev_err(&pdev->dev, "Couldn't ioremap regs\n");
-		return -ENODEV;
-	}
+	regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
 
 	for (i = 0; i < tegra_gpio_bank_count; i++) {
 		for (j = 0; j < 4; j++) {
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 199fca1..5359ca7 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -806,7 +806,7 @@ fail_unlock:
 }
 EXPORT_SYMBOL_GPL(gpio_export);
 
-static int match_export(struct device *dev, void *data)
+static int match_export(struct device *dev, const void *data)
 {
 	return dev_get_drvdata(dev) == data;
 }
diff --git a/drivers/gpu/drm/ast/Kconfig b/drivers/gpu/drm/ast/Kconfig
index a277b12..da4a51e 100644
--- a/drivers/gpu/drm/ast/Kconfig
+++ b/drivers/gpu/drm/ast/Kconfig
@@ -1,6 +1,6 @@
 config DRM_AST
 	tristate "AST server chips"
-	depends on DRM && PCI && EXPERIMENTAL
+	depends on DRM && PCI
 	select DRM_TTM
 	select FB_SYS_COPYAREA
 	select FB_SYS_FILLRECT
diff --git a/drivers/gpu/drm/cirrus/Kconfig b/drivers/gpu/drm/cirrus/Kconfig
index fc154dd..bf67b22 100644
--- a/drivers/gpu/drm/cirrus/Kconfig
+++ b/drivers/gpu/drm/cirrus/Kconfig
@@ -1,6 +1,6 @@
 config DRM_CIRRUS_QEMU
 	tristate "Cirrus driver for QEMU emulated device"
-	depends on DRM && PCI && EXPERIMENTAL
+	depends on DRM && PCI
 	select FB_SYS_FILLRECT
 	select FB_SYS_COPYAREA
 	select FB_SYS_IMAGEBLIT
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index 67a83e6..411f69b7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -1785,11 +1785,9 @@ static int fimc_probe(struct platform_device *pdev)
 
 	/* resource memory */
 	ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ctx->regs = devm_request_and_ioremap(dev, ctx->regs_res);
-	if (!ctx->regs) {
-		dev_err(dev, "failed to map registers.\n");
-		return -ENXIO;
-	}
+	ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
+	if (IS_ERR(ctx->regs))
+		return PTR_ERR(ctx->regs);
 
 	/* resource irq */
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 9537761..36493ce 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -913,11 +913,9 @@ static int fimd_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	ctx->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!ctx->regs) {
-		dev_err(dev, "failed to map registers\n");
-		return -ENXIO;
-	}
+	ctx->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ctx->regs))
+		return PTR_ERR(ctx->regs);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 9a4c08e..fb2f81b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -1136,10 +1136,9 @@ static int g2d_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	g2d->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!g2d->regs) {
-		dev_err(dev, "failed to remap I/O memory\n");
-		ret = -ENXIO;
+	g2d->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(g2d->regs)) {
+		ret = PTR_ERR(g2d->regs);
 		goto err_put_clk;
 	}
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 8140753..7841c3b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1692,11 +1692,9 @@ static int gsc_probe(struct platform_device *pdev)
 
 	/* resource memory */
 	ctx->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	ctx->regs = devm_request_and_ioremap(dev, ctx->regs_res);
-	if (!ctx->regs) {
-		dev_err(dev, "failed to map registers.\n");
-		return -ENXIO;
-	}
+	ctx->regs = devm_ioremap_resource(dev, ctx->regs_res);
+	if (IS_ERR(ctx->regs))
+		return PTR_ERR(ctx->regs);
 
 	/* resource irq */
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
index f976e29..a40b9fb 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
@@ -656,11 +656,9 @@ static int rotator_probe(struct platform_device *pdev)
 				platform_get_device_id(pdev)->driver_data;
 
 	rot->regs_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rot->regs = devm_request_and_ioremap(dev, rot->regs_res);
-	if (!rot->regs) {
-		dev_err(dev, "failed to map register\n");
-		return -ENXIO;
-	}
+	rot->regs = devm_ioremap_resource(dev, rot->regs_res);
+	if (IS_ERR(rot->regs))
+		return PTR_ERR(rot->regs);
 
 	rot->irq = platform_get_irq(pdev, 0);
 	if (rot->irq < 0) {
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index fbab3c4..2332475 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2501,11 +2501,9 @@ static int hdmi_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	hdata->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hdata->regs) {
-		DRM_ERROR("failed to map registers\n");
-		return -ENXIO;
-	}
+	hdata->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hdata->regs))
+		return PTR_ERR(hdata->regs);
 
 	ret = devm_gpio_request(&pdev->dev, hdata->hpd_gpio, "HPD");
 	if (ret) {
diff --git a/drivers/gpu/drm/gma500/Kconfig b/drivers/gpu/drm/gma500/Kconfig
index 42e665c..1188f0f 100644
--- a/drivers/gpu/drm/gma500/Kconfig
+++ b/drivers/gpu/drm/gma500/Kconfig
@@ -1,6 +1,6 @@
 config DRM_GMA500
 	tristate "Intel GMA5/600 KMS Framebuffer"
-	depends on DRM && PCI && X86 && EXPERIMENTAL
+	depends on DRM && PCI && X86
 	select FB_CFB_COPYAREA
         select FB_CFB_FILLRECT
         select FB_CFB_IMAGEBLIT
diff --git a/drivers/gpu/drm/mgag200/Kconfig b/drivers/gpu/drm/mgag200/Kconfig
index d630134..b487cde 100644
--- a/drivers/gpu/drm/mgag200/Kconfig
+++ b/drivers/gpu/drm/mgag200/Kconfig
@@ -1,6 +1,6 @@
 config DRM_MGAG200
 	tristate "Kernel modesetting driver for MGA G200 server engines"
-	depends on DRM && PCI && EXPERIMENTAL
+	depends on DRM && PCI
 	select FB_SYS_FILLRECT
 	select FB_SYS_COPYAREA
 	select FB_SYS_IMAGEBLIT
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 656b2e3..d365c6d 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -764,11 +764,9 @@ static int tegra_dc_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	dc->regs = devm_request_and_ioremap(&pdev->dev, regs);
-	if (!dc->regs) {
-		dev_err(&pdev->dev, "failed to remap registers\n");
-		return -ENXIO;
-	}
+	dc->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(dc->regs))
+		return PTR_ERR(dc->regs);
 
 	dc->irq = platform_get_irq(pdev, 0);
 	if (dc->irq < 0) {
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index e060c7e..266af78 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -1259,9 +1259,9 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
 	if (!regs)
 		return -ENXIO;
 
-	hdmi->regs = devm_request_and_ioremap(&pdev->dev, regs);
-	if (!hdmi->regs)
-		return -EADDRNOTAVAIL;
+	hdmi->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(hdmi->regs))
+		return PTR_ERR(hdmi->regs);
 
 	err = platform_get_irq(pdev, 0);
 	if (err < 0)
diff --git a/drivers/gpu/drm/tegra/host1x.c b/drivers/gpu/drm/tegra/host1x.c
index 5d17b11..92e25a7 100644
--- a/drivers/gpu/drm/tegra/host1x.c
+++ b/drivers/gpu/drm/tegra/host1x.c
@@ -139,9 +139,9 @@ static int tegra_host1x_probe(struct platform_device *pdev)
 
 	host1x->irq = err;
 
-	host1x->regs = devm_request_and_ioremap(&pdev->dev, regs);
-	if (!host1x->regs) {
-		err = -EADDRNOTAVAIL;
+	host1x->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(host1x->regs)) {
+		err = PTR_ERR(host1x->regs);
 		goto err;
 	}
 
diff --git a/drivers/gpu/drm/udl/Kconfig b/drivers/gpu/drm/udl/Kconfig
index 56e0bf3..6222af1 100644
--- a/drivers/gpu/drm/udl/Kconfig
+++ b/drivers/gpu/drm/udl/Kconfig
@@ -1,6 +1,6 @@
 config DRM_UDL
 	tristate "DisplayLink"
-	depends on DRM && EXPERIMENTAL
+	depends on DRM
 	depends on USB_ARCH_HAS_HCD
 	select DRM_USB
 	select FB_SYS_FILLRECT
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 2f8c76b..46cde098 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -89,7 +89,7 @@ source drivers/i2c/busses/Kconfig
 
 config I2C_STUB
 	tristate "I2C/SMBus Test Stub"
-	depends on EXPERIMENTAL && m
+	depends on m
 	default 'n'
 	help
 	  This module may be useful to developers of SMBus client drivers,
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index bdca511..9b94a78 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -22,7 +22,7 @@ config I2C_ALI1535
 
 config I2C_ALI1563
 	tristate "ALI 1563"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	help
 	  If you say yes to this option, support will be included for the SMB
 	  Host controller on Acer Labs Inc. (ALI) M1563 South Bridges.  The SMB
@@ -56,7 +56,7 @@ config I2C_AMD756
 
 config I2C_AMD756_S4882
 	tristate "SMBus multiplexing on the Tyan S4882"
-	depends on I2C_AMD756 && X86 && EXPERIMENTAL
+	depends on I2C_AMD756 && X86
 	help
 	  Enabling this option will add specific SMBus support for the Tyan
 	  S4882 motherboard.  On this 4-CPU board, the SMBus is multiplexed
@@ -164,7 +164,7 @@ config I2C_NFORCE2
 
 config I2C_NFORCE2_S4985
 	tristate "SMBus multiplexing on the Tyan S4985"
-	depends on I2C_NFORCE2 && X86 && EXPERIMENTAL
+	depends on I2C_NFORCE2 && X86
 	help
 	  Enabling this option will add specific SMBus support for the Tyan
 	  S4985 motherboard.  On this 4-CPU board, the SMBus is multiplexed
@@ -215,7 +215,7 @@ config I2C_SIS96X
 
 config I2C_VIA
 	tristate "VIA VT82C586B"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	select I2C_ALGOBIT
 	help
 	  If you say yes to this option, support will be included for the VIA
@@ -267,7 +267,7 @@ comment "Mac SMBus host controller drivers"
 
 config I2C_HYDRA
 	tristate "CHRP Apple Hydra Mac I/O I2C interface"
-	depends on PCI && PPC_CHRP && EXPERIMENTAL
+	depends on PCI && PPC_CHRP
 	select I2C_ALGOBIT
 	help
 	  This supports the use of the I2C interface in the Apple Hydra Mac
@@ -293,7 +293,7 @@ comment "I2C system bus drivers (mostly embedded / system-on-chip)"
 
 config I2C_AT91
 	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
-	depends on ARCH_AT91 && EXPERIMENTAL
+	depends on ARCH_AT91
 	help
 	  This supports the use of the I2C interface on Atmel AT91
 	  processors.
@@ -519,7 +519,6 @@ config I2C_NUC900
 
 config I2C_OCORES
 	tristate "OpenCores I2C Controller"
-	depends on EXPERIMENTAL
 	help
 	  If you say yes to this option, support will be included for the
 	  OpenCores I2C controller. For details see
@@ -712,7 +711,7 @@ config I2C_OCTEON
 
 config I2C_XILINX
 	tristate "Xilinx I2C Controller"
-	depends on EXPERIMENTAL && HAS_IOMEM
+	depends on HAS_IOMEM
 	help
 	  If you say yes to this option, support will be included for the
 	  Xilinx I2C controller.
@@ -803,7 +802,6 @@ config I2C_PARPORT_LIGHT
 
 config I2C_TAOS_EVM
 	tristate "TAOS evaluation module"
-	depends on EXPERIMENTAL
 	select SERIO
 	select SERIO_SERPORT
 	default n
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 2bfc04d0..ebc2241 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -723,9 +723,9 @@ static int at91_twi_probe(struct platform_device *pdev)
 	if (!dev->pdata)
 		return -ENODEV;
 
-	dev->base = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!dev->base)
-		return -EBUSY;
+	dev->base = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(dev->base))
+		return PTR_ERR(dev->base);
 
 	dev->irq = platform_get_irq(pdev, 0);
 	if (dev->irq < 0)
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index b973474..a71ece6 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -511,9 +511,9 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!base)
-		return -EBUSY;
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	i2c_imx = devm_kzalloc(&pdev->dev, sizeof(struct imx_i2c_struct),
 				GFP_KERNEL);
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index a873d0a..a337d08 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -12,6 +12,7 @@
  * kind, whether express or implied.
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -364,9 +365,9 @@ static int ocores_i2c_probe(struct platform_device *pdev)
 	if (!i2c)
 		return -ENOMEM;
 
-	i2c->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!i2c->base)
-		return -EADDRNOTAVAIL;
+	i2c->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(i2c->base))
+		return PTR_ERR(i2c->base);
 
 	pdata = pdev->dev.platform_data;
 	if (pdata) {
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 4cc2f05..3ee1886 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1103,11 +1103,9 @@ omap_i2c_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	dev->base = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!dev->base) {
-		dev_err(&pdev->dev, "I2C region already claimed\n");
-		return -ENOMEM;
-	}
+	dev->base = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(dev->base))
+		return PTR_ERR(dev->base);
 
 	match = of_match_device(of_match_ptr(omap_i2c_of_match), &pdev->dev);
 	if (match) {
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 9bd4d73..4ba4a95 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -642,11 +642,9 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 	if (ret < 0)
 		return ret;
 
-	priv->io = devm_request_and_ioremap(dev, res);
-	if (!priv->io) {
-		dev_err(dev, "cannot ioremap\n");
-		return -ENODEV;
-	}
+	priv->io = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->io))
+		return PTR_ERR(priv->io);
 
 	priv->irq = platform_get_irq(pdev, 0);
 	init_waitqueue_head(&priv->wait);
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index a290d08..c807a6d 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -1042,11 +1042,10 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev)
 		goto err_clk;
 	}
 
-	i2c->regs = devm_request_and_ioremap(&pdev->dev, res);
+	i2c->regs = devm_ioremap_resource(&pdev->dev, res);
 
-	if (i2c->regs == NULL) {
-		dev_err(&pdev->dev, "cannot map IO\n");
-		ret = -ENXIO;
+	if (IS_ERR(i2c->regs)) {
+		ret = PTR_ERR(i2c->regs);
 		goto err_clk;
 	}
 
diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c
index e03381a..5a7ad24 100644
--- a/drivers/i2c/busses/i2c-sirf.c
+++ b/drivers/i2c/busses/i2c-sirf.c
@@ -309,10 +309,9 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	siic->base = devm_request_and_ioremap(&pdev->dev, mem_res);
-	if (siic->base == NULL) {
-		dev_err(&pdev->dev, "IO remap failed!\n");
-		err = -ENOMEM;
+	siic->base = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(siic->base)) {
+		err = PTR_ERR(siic->base);
 		goto out;
 	}
 
diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c
index 580a0c0..60195b5 100644
--- a/drivers/i2c/busses/i2c-stu300.c
+++ b/drivers/i2c/busses/i2c-stu300.c
@@ -888,11 +888,11 @@ stu300_probe(struct platform_device *pdev)
 	if (!res)
 		return -ENOENT;
 
-	dev->virtbase = devm_request_and_ioremap(&pdev->dev, res);
+	dev->virtbase = devm_ioremap_resource(&pdev->dev, res);
 	dev_dbg(&pdev->dev, "initialize bus device I2C%d on virtual "
 		"base %p\n", bus_nr, dev->virtbase);
-	if (!dev->virtbase)
-		return -ENOMEM;
+	if (IS_ERR(dev->virtbase))
+		return PTR_ERR(dev->virtbase);
 
 	dev->irq = platform_get_irq(pdev, 0);
 	ret = devm_request_irq(&pdev->dev, dev->irq, stu300_irh, 0, NAME, dev);
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 7b38877..1fb3009 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -669,11 +669,9 @@ static int tegra_i2c_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!base) {
-		dev_err(&pdev->dev, "Cannot request/ioremap I2C registers\n");
-		return -EADDRNOTAVAIL;
-	}
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {
diff --git a/drivers/i2c/busses/i2c-xlr.c b/drivers/i2c/busses/i2c-xlr.c
index a005265..93f029e 100644
--- a/drivers/i2c/busses/i2c-xlr.c
+++ b/drivers/i2c/busses/i2c-xlr.c
@@ -7,6 +7,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -225,11 +226,9 @@ static int xlr_i2c_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	priv->iobase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!priv->iobase) {
-		dev_err(&pdev->dev, "devm_request_and_ioremap failed\n");
-		return -EBUSY;
-	}
+	priv->iobase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->iobase))
+		return PTR_ERR(priv->iobase);
 
 	priv->adap.dev.parent = &pdev->dev;
 	priv->adap.owner	= THIS_MODULE;
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index a0edd98..0be5b83 100644
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -19,7 +19,6 @@ config I2C_MUX_GPIO
 
 config I2C_MUX_PCA9541
 	tristate "NXP PCA9541 I2C Master Selector"
-	depends on EXPERIMENTAL
 	help
 	  If you say yes here you get support for the NXP PCA9541
 	  I2C Master Selector.
@@ -29,7 +28,6 @@ config I2C_MUX_PCA9541
 
 config I2C_MUX_PCA954x
 	tristate "Philips PCA954x I2C Mux/switches"
-	depends on EXPERIMENTAL
 	help
 	  If you say yes here you get support for the Philips PCA954x
 	  I2C mux/switch devices.
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 5a26584..3c4417a 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -322,8 +322,7 @@ config BLK_DEV_GENERIC
           which otherwise might not be supported.
 
 config BLK_DEV_OPTI621
-	tristate "OPTi 82C621 chipset enhanced support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "OPTi 82C621 chipset enhanced support"
 	select BLK_DEV_IDEPCI
 	help
 	  This is a driver for the OPTi 82C621 EIDE controller.
@@ -417,7 +416,6 @@ config BLK_DEV_CY82C693
 
 config BLK_DEV_CS5520
 	tristate "Cyrix CS5510/20 MediaGX chipset support (VERY EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	select BLK_DEV_IDEDMA_PCI
 	help
 	  Include support for PIO tuning and virtual DMA on the Cyrix MediaGX
@@ -761,8 +759,8 @@ config BLK_DEV_GAYLE
 	  use Gayle IDE interfaces on the Zorro expansion bus.
 
 config BLK_DEV_BUDDHA
-	tristate "Buddha/Catweasel/X-Surf IDE interface support (EXPERIMENTAL)"
-	depends on ZORRO && EXPERIMENTAL
+	tristate "Buddha/Catweasel/X-Surf IDE interface support"
+	depends on ZORRO
 	help
 	  This is the IDE driver for the IDE interfaces on the Buddha, Catweasel
 	  and X-Surf expansion boards.  It supports up to two interfaces on the
diff --git a/drivers/idle/Kconfig b/drivers/idle/Kconfig
index 8489eb5..4732dfc 100644
--- a/drivers/idle/Kconfig
+++ b/drivers/idle/Kconfig
@@ -18,7 +18,6 @@ config I7300_IDLE_IOAT_CHANNEL
 config I7300_IDLE
 	tristate "Intel chipset idle memory power saving driver"
 	select I7300_IDLE_IOAT_CHANNEL
-	depends on EXPERIMENTAL
 	help
 	  Enable memory power savings when idle with certain Intel server
 	  chipsets. The chipset must have I/O AT support, such as the
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index a526c0e..83c836b 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -557,9 +557,9 @@ static int at91_adc_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	st->reg_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!st->reg_base) {
-		ret = -ENOMEM;
+	st->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(st->reg_base)) {
+		ret = PTR_ERR(st->reg_base);
 		goto error_free_device;
 	}
 
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index 695d237..cb1e8f6 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -228,11 +228,9 @@ static int spear_kbd_probe(struct platform_device *pdev)
 		kbd->suspended_rate = pdata->suspended_rate;
 	}
 
-	kbd->io_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!kbd->io_base) {
-		dev_err(&pdev->dev, "request-ioremap failed for kbd_region\n");
-		return -ENOMEM;
-	}
+	kbd->io_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(kbd->io_base))
+		return PTR_ERR(kbd->io_base);
 
 	kbd->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(kbd->clk))
diff --git a/drivers/input/serio/arc_ps2.c b/drivers/input/serio/arc_ps2.c
index b571eb3..c52e3e5 100644
--- a/drivers/input/serio/arc_ps2.c
+++ b/drivers/input/serio/arc_ps2.c
@@ -8,6 +8,7 @@
  * Driver is originally developed by Pavel Sokolov <psokolov@synopsys.com>
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/input.h>
@@ -206,9 +207,9 @@ static int arc_ps2_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	arc_ps2->addr = devm_request_and_ioremap(&pdev->dev, res);
-	if (!arc_ps2->addr)
-		return -EBUSY;
+	arc_ps2->addr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(arc_ps2->addr))
+		return PTR_ERR(arc_ps2->addr);
 
 	dev_info(&pdev->dev, "irq = %d, address = 0x%p, ports = %i\n",
 		 irq, arc_ps2->addr, ARC_PS2_PORTS);
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index e39f9db..0106898 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -65,8 +65,8 @@ config AMD_IOMMU_STATS
 	  If unsure, say N.
 
 config AMD_IOMMU_V2
-	tristate "AMD IOMMU Version 2 driver (EXPERIMENTAL)"
-	depends on AMD_IOMMU && PROFILING && EXPERIMENTAL
+	tristate "AMD IOMMU Version 2 driver"
+	depends on AMD_IOMMU && PROFILING
 	select MMU_NOTIFIER
 	---help---
 	  This option enables support for the AMD IOMMUv2 features of the IOMMU
@@ -119,8 +119,8 @@ config INTEL_IOMMU_FLOPPY_WA
 	  16MiB to make floppy (an ISA device) work.
 
 config IRQ_REMAP
-	bool "Support for Interrupt Remapping (EXPERIMENTAL)"
-	depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL
+	bool "Support for Interrupt Remapping"
+	depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI
 	select DMAR_TABLE
 	---help---
 	  Supports Interrupt remapping for IO-APIC and MSI devices.
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index fc17889..f08dbcd 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -19,6 +19,7 @@
 
 #define pr_fmt(fmt)	"%s(): " fmt, __func__
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
@@ -1176,9 +1177,9 @@ static int tegra_smmu_probe(struct platform_device *pdev)
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
 		if (!res)
 			return -ENODEV;
-		smmu->regs[i] = devm_request_and_ioremap(&pdev->dev, res);
-		if (!smmu->regs[i])
-			return -EBUSY;
+		smmu->regs[i] = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(smmu->regs[i]))
+			return PTR_ERR(smmu->regs[i]);
 	}
 
 	err = of_get_dma_window(dev->of_node, NULL, 0, NULL, &base, &size);
diff --git a/drivers/isdn/hisax/Kconfig b/drivers/isdn/hisax/Kconfig
index 70ecd0c..5313c9e 100644
--- a/drivers/isdn/hisax/Kconfig
+++ b/drivers/isdn/hisax/Kconfig
@@ -389,8 +389,8 @@ config HISAX_TELES_CS
 comment "HiSax sub driver modules"
 
 config HISAX_ST5481
-	tristate "ST5481 USB ISDN modem (EXPERIMENTAL)"
-	depends on USB && EXPERIMENTAL
+	tristate "ST5481 USB ISDN modem"
+	depends on USB
 	select ISDN_HDLC
 	select CRC_CCITT
 	select BITREVERSE
@@ -399,20 +399,19 @@ config HISAX_ST5481
 	  e.g. the BeWan Gazel 128 USB
 
 config HISAX_HFCUSB
-	tristate "HFC USB based ISDN modems (EXPERIMENTAL)"
-	depends on USB && EXPERIMENTAL
+	tristate "HFC USB based ISDN modems"
+	depends on USB
 	help
 	  This enables the driver for HFC USB based ISDN modems.
 
 config HISAX_HFC4S8S
-	tristate "HFC-4S/8S based ISDN cards (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "HFC-4S/8S based ISDN cards"
 	help
 	  This enables the driver for HFC-4S/8S based ISDN cards.
 
 config HISAX_FRITZ_PCIPNP
-	tristate "AVM Fritz!Card PCI/PCIv2/PnP support (EXPERIMENTAL)"
-	depends on PCI && EXPERIMENTAL
+	tristate "AVM Fritz!Card PCI/PCIv2/PnP support"
+	depends on PCI
 	help
 	  This enables the driver for the AVM Fritz!Card PCI,
 	  Fritz!Card PCI v2 and Fritz!Card PnP.
diff --git a/drivers/isdn/mISDN/core.c b/drivers/isdn/mISDN/core.c
index 3e24571..da30c5c 100644
--- a/drivers/isdn/mISDN/core.c
+++ b/drivers/isdn/mISDN/core.c
@@ -168,13 +168,13 @@ static struct class mISDN_class = {
 };
 
 static int
-_get_mdevice(struct device *dev, void *id)
+_get_mdevice(struct device *dev, const void *id)
 {
 	struct mISDNdevice *mdev = dev_to_mISDN(dev);
 
 	if (!mdev)
 		return 0;
-	if (mdev->id != *(u_int *)id)
+	if (mdev->id != *(const u_int *)id)
 		return 0;
 	return 1;
 }
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index b58bc8a..4469b44 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -154,7 +154,7 @@ config LEDS_HP6XX
 config LEDS_PCA9532
 	tristate "LED driver for PCA9532 dimmer"
 	depends on LEDS_CLASS
-	depends on I2C && INPUT && EXPERIMENTAL
+	depends on I2C && INPUT
 	help
 	  This option enables support for NXP pca9532
 	  LED controller. It is generally only useful
diff --git a/drivers/lguest/Kconfig b/drivers/lguest/Kconfig
index 34ae49d..6cdcdb0 100644
--- a/drivers/lguest/Kconfig
+++ b/drivers/lguest/Kconfig
@@ -1,6 +1,6 @@
 config LGUEST
 	tristate "Linux hypervisor example code"
-	depends on X86_32 && EXPERIMENTAL && EVENTFD
+	depends on X86_32 && EVENTFD
 	select HVC_DRIVER
 	---help---
 	  This is a very simple module which allows you to run
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index a555da6..696238b 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -278,7 +278,7 @@ config PMAC_RACKMETER
 
 config SENSORS_AMS
 	tristate "Apple Motion Sensor driver"
-	depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C) && EXPERIMENTAL
+	depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C)
 	select INPUT_POLLDEV
 	help
 	  Support for the motion sensor included in PowerBooks. Includes
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index 4ef0d80..8567a7a 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -79,8 +79,7 @@ config MEDIA_RC_SUPPORT
 #
 
 config MEDIA_CONTROLLER
-	bool "Media Controller API (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Media Controller API"
 	depends on MEDIA_CAMERA_SUPPORT
 	---help---
 	  Enable the media controller API used to query media devices internal
@@ -100,8 +99,8 @@ config VIDEO_DEV
 	default y
 
 config VIDEO_V4L2_SUBDEV_API
-	bool "V4L2 sub-device userspace API (EXPERIMENTAL)"
-	depends on VIDEO_DEV && MEDIA_CONTROLLER && EXPERIMENTAL
+	bool "V4L2 sub-device userspace API"
+	depends on VIDEO_DEV && MEDIA_CONTROLLER
 	---help---
 	  Enables the V4L2 sub-device pad-level userspace API used to configure
 	  video format, size and frame rate between hardware blocks.
diff --git a/drivers/media/pci/cx25821/Kconfig b/drivers/media/pci/cx25821/Kconfig
index 5f6b542..4017c94 100644
--- a/drivers/media/pci/cx25821/Kconfig
+++ b/drivers/media/pci/cx25821/Kconfig
@@ -18,7 +18,7 @@ config VIDEO_CX25821
 
 config VIDEO_CX25821_ALSA
 	tristate "Conexant 25821 DMA audio support"
-	depends on VIDEO_CX25821 && SND && EXPERIMENTAL
+	depends on VIDEO_CX25821 && SND
 	select SND_PCM
 	---help---
 	  This is a video4linux driver for direct (DMA) audio on
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 3dcfea6..3324112 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -98,8 +98,8 @@ config VIDEO_OMAP2
 	  This is a v4l2 driver for the TI OMAP2 camera capture interface
 
 config VIDEO_OMAP3
-	tristate "OMAP 3 Camera support (EXPERIMENTAL)"
-	depends on OMAP_IOVMM && VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API && ARCH_OMAP3 && EXPERIMENTAL
+	tristate "OMAP 3 Camera support"
+	depends on OMAP_IOVMM && VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API && ARCH_OMAP3
 	---help---
 	  Driver for an OMAP 3 camera controller.
 
@@ -169,8 +169,8 @@ config VIDEO_SAMSUNG_S5P_G2D
 	  2d graphics accelerator.
 
 config VIDEO_SAMSUNG_S5P_JPEG
-	tristate "Samsung S5P/Exynos4 JPEG codec driver (EXPERIMENTAL)"
-	depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P && EXPERIMENTAL
+	tristate "Samsung S5P/Exynos4 JPEG codec driver"
+	depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_MEM2MEM_DEV
 	---help---
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index 2b1b9f3..c1a0713 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1098,11 +1098,9 @@ static int gsc_probe(struct platform_device *pdev)
 	mutex_init(&gsc->lock);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	gsc->regs = devm_request_and_ioremap(dev, res);
-	if (!gsc->regs) {
-		dev_err(dev, "failed to map registers\n");
-		return -ENOENT;
-	}
+	gsc->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(gsc->regs))
+		return PTR_ERR(gsc->regs);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {
diff --git a/drivers/media/platform/mx2_emmaprp.c b/drivers/media/platform/mx2_emmaprp.c
index 6b155d7..4b9e0a2 100644
--- a/drivers/media/platform/mx2_emmaprp.c
+++ b/drivers/media/platform/mx2_emmaprp.c
@@ -941,9 +941,9 @@ static int emmaprp_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, pcdev);
 
-	pcdev->base_emma = devm_request_and_ioremap(&pdev->dev, res_emma);
-	if (!pcdev->base_emma) {
-		ret = -ENXIO;
+	pcdev->base_emma = devm_ioremap_resource(&pdev->dev, res_emma);
+	if (IS_ERR(pcdev->base_emma)) {
+		ret = PTR_ERR(pcdev->base_emma);
 		goto rel_vdev;
 	}
 
diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c
index e2716c3..09a8c9c 100644
--- a/drivers/media/platform/s3c-camif/camif-core.c
+++ b/drivers/media/platform/s3c-camif/camif-core.c
@@ -433,11 +433,9 @@ static int s3c_camif_probe(struct platform_device *pdev)
 
 	mres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	camif->io_base = devm_request_and_ioremap(dev, mres);
-	if (!camif->io_base) {
-		dev_err(dev, "failed to obtain I/O memory\n");
-		return -ENOENT;
-	}
+	camif->io_base = devm_ioremap_resource(dev, mres);
+	if (IS_ERR(camif->io_base))
+		return PTR_ERR(camif->io_base);
 
 	ret = camif_request_irqs(pdev, camif);
 	if (ret < 0)
diff --git a/drivers/media/platform/s5p-fimc/Kconfig b/drivers/media/platform/s5p-fimc/Kconfig
index c16b20d8..f997a52 100644
--- a/drivers/media/platform/s5p-fimc/Kconfig
+++ b/drivers/media/platform/s5p-fimc/Kconfig
@@ -2,7 +2,6 @@
 config VIDEO_SAMSUNG_S5P_FIMC
 	bool "Samsung S5P/EXYNOS SoC camera interface driver (experimental)"
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && PLAT_S5P && PM_RUNTIME
-	depends on EXPERIMENTAL
 	help
 	  Say Y here to enable camera host interface devices for
 	  Samsung S5P and EXYNOS SoC series.
diff --git a/drivers/media/platform/s5p-fimc/fimc-core.c b/drivers/media/platform/s5p-fimc/fimc-core.c
index 545b46a..acc0f84 100644
--- a/drivers/media/platform/s5p-fimc/fimc-core.c
+++ b/drivers/media/platform/s5p-fimc/fimc-core.c
@@ -909,11 +909,9 @@ static int fimc_probe(struct platform_device *pdev)
 	mutex_init(&fimc->lock);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (fimc->regs == NULL) {
-		dev_err(&pdev->dev, "Failed to obtain io memory\n");
-		return -ENOENT;
-	}
+	fimc->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(fimc->regs))
+		return PTR_ERR(fimc->regs);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (res == NULL) {
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c
index ed67220..67db9f8 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite.c
@@ -1426,11 +1426,9 @@ static int fimc_lite_probe(struct platform_device *pdev)
 	mutex_init(&fimc->lock);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (fimc->regs == NULL) {
-		dev_err(&pdev->dev, "Failed to obtain io memory\n");
-		return -ENOENT;
-	}
+	fimc->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(fimc->regs))
+		return PTR_ERR(fimc->regs);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (res == NULL) {
diff --git a/drivers/media/platform/s5p-fimc/mipi-csis.c b/drivers/media/platform/s5p-fimc/mipi-csis.c
index ec3fa7d..7abae01 100644
--- a/drivers/media/platform/s5p-fimc/mipi-csis.c
+++ b/drivers/media/platform/s5p-fimc/mipi-csis.c
@@ -686,11 +686,9 @@ static int s5pcsis_probe(struct platform_device *pdev)
 	}
 
 	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	state->regs = devm_request_and_ioremap(&pdev->dev, mem_res);
-	if (state->regs == NULL) {
-		dev_err(&pdev->dev, "Failed to request and remap io memory\n");
-		return -ENXIO;
-	}
+	state->regs = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(state->regs))
+		return PTR_ERR(state->regs);
 
 	state->irq = platform_get_irq(pdev, 0);
 	if (state->irq < 0) {
diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c
index 1bfbc32..6ed259f 100644
--- a/drivers/media/platform/s5p-g2d/g2d.c
+++ b/drivers/media/platform/s5p-g2d/g2d.c
@@ -708,11 +708,9 @@ static int g2d_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	dev->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (dev->regs == NULL) {
-			dev_err(&pdev->dev, "Failed to obtain io memory\n");
-			return -ENOENT;
-	}
+	dev->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dev->regs))
+		return PTR_ERR(dev->regs);
 
 	dev->clk = clk_get(&pdev->dev, "sclk_fimg2d");
 	if (IS_ERR_OR_NULL(dev->clk)) {
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index 17983c4..3b02375 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -1325,11 +1325,9 @@ static int s5p_jpeg_probe(struct platform_device *pdev)
 	/* memory-mapped registers */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	jpeg->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (jpeg->regs == NULL) {
-		dev_err(&pdev->dev, "Failed to obtain io memory\n");
-		return -ENOENT;
-	}
+	jpeg->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(jpeg->regs))
+		return PTR_ERR(jpeg->regs);
 
 	/* interrupt service routine registration */
 	jpeg->irq = ret = platform_get_irq(pdev, 0);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 681bc6b..8b7fbc7 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1047,11 +1047,9 @@ static int s5p_mfc_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	dev->regs_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (dev->regs_base == NULL) {
-		dev_err(&pdev->dev, "Failed to obtain io memory\n");
-		return -ENOENT;
-	}
+	dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dev->regs_base))
+		return PTR_ERR(dev->regs_base);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (res == NULL) {
diff --git a/drivers/media/platform/s5p-tv/Kconfig b/drivers/media/platform/s5p-tv/Kconfig
index ea11a51..7b659bd 100644
--- a/drivers/media/platform/s5p-tv/Kconfig
+++ b/drivers/media/platform/s5p-tv/Kconfig
@@ -7,9 +7,8 @@
 # Licensed under GPL
 
 config VIDEO_SAMSUNG_S5P_TV
-	bool "Samsung TV driver for S5P platform (experimental)"
+	bool "Samsung TV driver for S5P platform"
 	depends on PLAT_S5P && PM_RUNTIME
-	depends on EXPERIMENTAL
 	default n
 	---help---
 	  Say Y here to enable selecting the TV output devices for
diff --git a/drivers/media/platform/soc_camera/mx2_camera.c b/drivers/media/platform/soc_camera/mx2_camera.c
index 8bda2c9..1abdc7d 100644
--- a/drivers/media/platform/soc_camera/mx2_camera.c
+++ b/drivers/media/platform/soc_camera/mx2_camera.c
@@ -1707,9 +1707,9 @@ static int mx27_camera_emma_init(struct platform_device *pdev)
 		goto out;
 	}
 
-	pcdev->base_emma = devm_request_and_ioremap(pcdev->dev, res_emma);
-	if (!pcdev->base_emma) {
-		err = -EADDRNOTAVAIL;
+	pcdev->base_emma = devm_ioremap_resource(pcdev->dev, res_emma);
+	if (IS_ERR(pcdev->base_emma)) {
+		err = PTR_ERR(pcdev->base_emma);
 		goto out;
 	}
 
@@ -1824,9 +1824,9 @@ static int mx2_camera_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&pcdev->discard);
 	spin_lock_init(&pcdev->lock);
 
-	pcdev->base_csi = devm_request_and_ioremap(&pdev->dev, res_csi);
-	if (!pcdev->base_csi) {
-		err = -EADDRNOTAVAIL;
+	pcdev->base_csi = devm_ioremap_resource(&pdev->dev, res_csi);
+	if (IS_ERR(pcdev->base_csi)) {
+		err = PTR_ERR(pcdev->base_csi);
 		goto exit;
 	}
 
diff --git a/drivers/media/usb/dvb-usb-v2/Kconfig b/drivers/media/usb/dvb-usb-v2/Kconfig
index 834bfec..7a622db 100644
--- a/drivers/media/usb/dvb-usb-v2/Kconfig
+++ b/drivers/media/usb/dvb-usb-v2/Kconfig
@@ -134,7 +134,7 @@ config DVB_USB_MXL111SF
 
 config DVB_USB_RTL28XXU
 	tristate "Realtek RTL28xxU DVB USB support"
-	depends on DVB_USB_V2 && EXPERIMENTAL
+	depends on DVB_USB_V2
 	select DVB_RTL2830
 	select DVB_RTL2832
 	select MEDIA_TUNER_QT1010 if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/media/usb/pvrusb2/Kconfig b/drivers/media/usb/pvrusb2/Kconfig
index 32b11c1..60a2604 100644
--- a/drivers/media/usb/pvrusb2/Kconfig
+++ b/drivers/media/usb/pvrusb2/Kconfig
@@ -17,9 +17,9 @@ config VIDEO_PVRUSB2
 	  module will be called pvrusb2
 
 config VIDEO_PVRUSB2_SYSFS
-	bool "pvrusb2 sysfs support (EXPERIMENTAL)"
+	bool "pvrusb2 sysfs support"
 	default y
-	depends on VIDEO_PVRUSB2 && SYSFS && EXPERIMENTAL
+	depends on VIDEO_PVRUSB2 && SYSFS
 	---help---
 	  This option enables the operation of a sysfs based
 	  interface for query and control of the pvrusb2 driver.
@@ -33,9 +33,9 @@ config VIDEO_PVRUSB2_SYSFS
 	  Note: This feature is experimental and subject to change.
 
 config VIDEO_PVRUSB2_DVB
-	bool "pvrusb2 ATSC/DVB support (EXPERIMENTAL)"
+	bool "pvrusb2 ATSC/DVB support"
 	default y
-	depends on VIDEO_PVRUSB2 && DVB_CORE && EXPERIMENTAL
+	depends on VIDEO_PVRUSB2 && DVB_CORE
 	select DVB_LGDT330X if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_S5H1409 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_S5H1411 if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/memory/emif.c b/drivers/memory/emif.c
index 06d31c9..df08736 100644
--- a/drivers/memory/emif.c
+++ b/drivers/memory/emif.c
@@ -10,6 +10,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/reboot.h>
 #include <linux/platform_data/emif_plat.h>
@@ -1468,12 +1469,9 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
 		goto error;
 	}
 
-	emif->base = devm_request_and_ioremap(emif->dev, res);
-	if (!emif->base) {
-		dev_err(emif->dev, "%s: devm_request_and_ioremap() failed\n",
-			__func__);
+	emif->base = devm_ioremap_resource(emif->dev, res);
+	if (IS_ERR(emif->base))
 		goto error;
-	}
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
diff --git a/drivers/memory/tegra20-mc.c b/drivers/memory/tegra20-mc.c
index 186f27d..2ca5f28 100644
--- a/drivers/memory/tegra20-mc.c
+++ b/drivers/memory/tegra20-mc.c
@@ -17,6 +17,7 @@
  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/ratelimit.h>
@@ -216,9 +217,9 @@ static int tegra20_mc_probe(struct platform_device *pdev)
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
 		if (!res)
 			return -ENODEV;
-		mc->regs[i] = devm_request_and_ioremap(&pdev->dev, res);
-		if (!mc->regs[i])
-			return -EBUSY;
+		mc->regs[i] = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(mc->regs[i]))
+			return PTR_ERR(mc->regs[i]);
 	}
 
 	irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/memory/tegra30-mc.c b/drivers/memory/tegra30-mc.c
index 0b7ab93..0b975986 100644
--- a/drivers/memory/tegra30-mc.c
+++ b/drivers/memory/tegra30-mc.c
@@ -17,6 +17,7 @@
  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/ratelimit.h>
@@ -336,9 +337,9 @@ static int tegra30_mc_probe(struct platform_device *pdev)
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
 		if (!res)
 			return -ENODEV;
-		mc->regs[i] = devm_request_and_ioremap(&pdev->dev, res);
-		if (!mc->regs[i])
-			return -EBUSY;
+		mc->regs[i] = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(mc->regs[i]))
+			return PTR_ERR(mc->regs[i]);
 	}
 
 	irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
diff --git a/drivers/memstick/Kconfig b/drivers/memstick/Kconfig
index f0ca41c..1314605 100644
--- a/drivers/memstick/Kconfig
+++ b/drivers/memstick/Kconfig
@@ -3,7 +3,7 @@
 #
 
 menuconfig MEMSTICK
-	tristate "Sony MemoryStick card support (EXPERIMENTAL)"
+	tristate "Sony MemoryStick card support"
 	help
 	  Sony MemoryStick is a proprietary storage/extension card protocol.
 
diff --git a/drivers/memstick/host/Kconfig b/drivers/memstick/host/Kconfig
index 4f7a17f..1b37cf8 100644
--- a/drivers/memstick/host/Kconfig
+++ b/drivers/memstick/host/Kconfig
@@ -5,8 +5,8 @@
 comment "MemoryStick Host Controller Drivers"
 
 config MEMSTICK_TIFM_MS
-	tristate "TI Flash Media MemoryStick Interface support  (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PCI
+	tristate "TI Flash Media MemoryStick Interface support "
+	depends on PCI
 	select TIFM_CORE
 	help
 	  Say Y here if you want to be able to access MemoryStick cards with
@@ -21,8 +21,8 @@ config MEMSTICK_TIFM_MS
 	  module will be called tifm_ms.
 
 config MEMSTICK_JMICRON_38X
-	tristate "JMicron JMB38X MemoryStick interface support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PCI
+	tristate "JMicron JMB38X MemoryStick interface support"
+	depends on PCI
 
 	help
 	  Say Y here if you want to be able to access MemoryStick cards with
@@ -32,8 +32,8 @@ config MEMSTICK_JMICRON_38X
 	  module will be called jmb38x_ms.
 
 config MEMSTICK_R592
-	tristate "Ricoh R5C592 MemoryStick interface support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PCI
+	tristate "Ricoh R5C592 MemoryStick interface support"
+	depends on PCI
 
 	help
 	  Say Y here if you want to be able to access MemoryStick cards with
diff --git a/drivers/mfd/intel_msic.c b/drivers/mfd/intel_msic.c
index ab8d0b2..1804331 100644
--- a/drivers/mfd/intel_msic.c
+++ b/drivers/mfd/intel_msic.c
@@ -9,6 +9,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/err.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
 #include <linux/module.h>
@@ -424,11 +425,9 @@ static int intel_msic_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	msic->irq_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!msic->irq_base) {
-		dev_err(&pdev->dev, "failed to map SRAM memory\n");
-		return -ENOMEM;
-	}
+	msic->irq_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(msic->irq_base))
+		return PTR_ERR(msic->irq_base);
 
 	platform_set_drvdata(pdev, msic);
 
diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c
index bd90dd2..c09c28f 100644
--- a/drivers/misc/atmel-ssc.c
+++ b/drivers/misc/atmel-ssc.c
@@ -159,11 +159,9 @@ static int ssc_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	ssc->regs = devm_request_and_ioremap(&pdev->dev, regs);
-	if (!ssc->regs) {
-		dev_dbg(&pdev->dev, "ioremap failed\n");
-		return -EINVAL;
-	}
+	ssc->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(ssc->regs))
+		return PTR_ERR(ssc->regs);
 
 	ssc->phybase = regs->start;
 
diff --git a/drivers/mmc/core/Kconfig b/drivers/mmc/core/Kconfig
index ef10387..269d072 100644
--- a/drivers/mmc/core/Kconfig
+++ b/drivers/mmc/core/Kconfig
@@ -18,8 +18,7 @@ config MMC_UNSAFE_RESUME
 	  module parameter "removable=0" or "removable=1".
 
 config MMC_CLKGATE
-	bool "MMC host clock gating (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "MMC host clock gating"
 	help
 	  This will attempt to aggressively gate the clock to the MMC card.
 	  This is done to save power due to gating off the logic and bus
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 8d13c65..cc8a8fa 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -69,7 +69,7 @@ config MMC_SDHCI_PCI
 	  If unsure, say N.
 
 config MMC_RICOH_MMC
-	bool "Ricoh MMC Controller Disabler  (EXPERIMENTAL)"
+	bool "Ricoh MMC Controller Disabler"
 	depends on MMC_SDHCI_PCI
 	help
 	  This adds a pci quirk to disable Ricoh MMC Controller. This
@@ -186,9 +186,6 @@ config MMC_SDHCI_S3C
 	  often referrered to as the HSMMC block in some of the Samsung S3C
 	  range of SoC.
 
-	  Note, due to the problems with DMA, the DMA support is only
-	  available with CONFIG_EXPERIMENTAL is selected.
-
 	  If you have a controller with this interface, say Y or M here.
 
 	  If unsure, say N.
@@ -233,7 +230,7 @@ config MMC_SDHCI_SPEAR
 
 config MMC_SDHCI_S3C_DMA
 	bool "DMA support on S3C SDHCI"
-	depends on MMC_SDHCI_S3C && EXPERIMENTAL
+	depends on MMC_SDHCI_S3C
 	help
 	  Enable DMA support on the Samsung S3C SDHCI glue. The DMA
 	  has proved to be problematic if the controller encounters
@@ -330,8 +327,8 @@ config MMC_MXS
 	  If unsure, say N.
 
 config MMC_TIFM_SD
-	tristate "TI Flash Media MMC/SD Interface support  (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PCI
+	tristate "TI Flash Media MMC/SD Interface support"
+	depends on PCI
 	select TIFM_CORE
 	help
 	  Say Y here if you want to be able to access MMC/SD cards with
@@ -410,8 +407,7 @@ config MMC_S3C_PIO
 	  the S3C MCI driver.
 
 config MMC_S3C_DMA
-	bool "Use DMA transfers only (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	bool "Use DMA transfers only"
 	help
 	  Use DMA to transfer data between memory and the hardare.
 
@@ -420,7 +416,7 @@ config MMC_S3C_DMA
 	  option is useful.
 
 config MMC_S3C_PIODMA
-	bool "Support for both PIO and DMA (EXPERIMENTAL)"
+	bool "Support for both PIO and DMA"
 	help
 	  Compile both the PIO and DMA transfer routines into the
 	  driver and let the platform select at run-time which one
@@ -431,8 +427,8 @@ config MMC_S3C_PIODMA
 endchoice
 
 config MMC_SDRICOH_CS
-	tristate "MMC/SD driver for Ricoh Bay1Controllers (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PCI && PCMCIA
+	tristate "MMC/SD driver for Ricoh Bay1Controllers"
+	depends on PCI && PCMCIA
 	help
 	  Say Y here if your Notebook reports a Ricoh Bay1Controller PCMCIA
 	  card whenever you insert a MMC or SD card into the card slot.
diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index 5e1fb1d..41c27b7 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -10,6 +10,7 @@
  * (at your option) any later version.
  */
 
+#include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/io.h>
@@ -46,9 +47,9 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
 	host->dev = &pdev->dev;
 	host->irq_flags = 0;
 	host->pdata = pdev->dev.platform_data;
-	host->regs = devm_request_and_ioremap(&pdev->dev, regs);
-	if (!host->regs)
-		return -ENOMEM;
+	host->regs = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(host->regs))
+		return PTR_ERR(host->regs);
 
 	if (drv_data && drv_data->init) {
 		ret = drv_data->init(host);
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 206fe49..5b66555 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -614,9 +614,9 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 	host = mmc_priv(mmc);
 	ssp = &host->ssp;
 	ssp->dev = &pdev->dev;
-	ssp->base = devm_request_and_ioremap(&pdev->dev, iores);
-	if (!ssp->base) {
-		ret = -EADDRNOTAVAIL;
+	ssp->base = devm_ioremap_resource(&pdev->dev, iores);
+	if (IS_ERR(ssp->base)) {
+		ret = PTR_ERR(ssp->base);
 		goto out_mmc_free;
 	}
 
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 82a8de1..a0c6214 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -651,10 +651,9 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
 #endif
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	host->ioaddr = devm_request_and_ioremap(&pdev->dev, res);
-	if (!host->ioaddr) {
-		dev_err(dev, "failed to map registers\n");
-		ret = -ENXIO;
+	host->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(host->ioaddr)) {
+		ret = PTR_ERR(host->ioaddr);
 		goto err_req_regs;
 	}
 
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 73fcbbe..03f2eb5 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -291,7 +291,7 @@ config SSFDC
 
 config SM_FTL
 	tristate "SmartMedia/xD new translation layer"
-	depends on EXPERIMENTAL && BLOCK
+	depends on BLOCK
 	select MTD_BLKDEVS
 	select MTD_NAND_ECC
 	help
diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
index e469b01..c219e3d 100644
--- a/drivers/mtd/chips/Kconfig
+++ b/drivers/mtd/chips/Kconfig
@@ -225,7 +225,7 @@ config MTD_ABSENT
 
 config MTD_XIP
 	bool "XIP aware MTD support"
-	depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && EXPERIMENTAL && ARCH_MTD_XIP
+	depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && ARCH_MTD_XIP
 	default y if XIP_KERNEL
 	help
 	  This allows MTD support to work with flash memory which is also
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index 46dcb54..12311f5 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -52,7 +52,7 @@ config MTD_MS02NV
 
 config MTD_DATAFLASH
 	tristate "Support for AT45xxx DataFlash"
-	depends on SPI_MASTER && EXPERIMENTAL
+	depends on SPI_MASTER
 	help
 	  This enables access to AT45xxx DataFlash chips, using SPI.
 	  Sometimes DataFlash chips are packaged inside MMC-format
@@ -81,7 +81,7 @@ config MTD_DATAFLASH_OTP
 
 config MTD_M25P80
 	tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)"
-	depends on SPI_MASTER && EXPERIMENTAL
+	depends on SPI_MASTER
 	help
 	  This enables access to most modern SPI flash chips, used for
 	  program and data storage.   Series supported include Atmel AT26DF,
diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c
index 2aabd96..8a82b8b 100644
--- a/drivers/mtd/devices/spear_smi.c
+++ b/drivers/mtd/devices/spear_smi.c
@@ -949,10 +949,9 @@ static int spear_smi_probe(struct platform_device *pdev)
 
 	smi_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	dev->io_base = devm_request_and_ioremap(&pdev->dev, smi_base);
-	if (!dev->io_base) {
-		ret = -EIO;
-		dev_err(&pdev->dev, "devm_request_and_ioremap fail\n");
+	dev->io_base = devm_ioremap_resource(&pdev->dev, smi_base);
+	if (IS_ERR(dev->io_base)) {
+		ret = PTR_ERR(dev->io_base);
 		goto err;
 	}
 
diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c
index a2dc2ae..c3525d2 100644
--- a/drivers/mtd/maps/autcpu12-nvram.c
+++ b/drivers/mtd/maps/autcpu12-nvram.c
@@ -16,6 +16,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+#include <linux/err.h>
 #include <linux/sizes.h>
 
 #include <linux/types.h>
@@ -55,12 +56,10 @@ static int autcpu12_nvram_probe(struct platform_device *pdev)
 	priv->map.bankwidth	= 4;
 	priv->map.phys		= res->start;
 	priv->map.size		= resource_size(res);
-	priv->map.virt		= devm_request_and_ioremap(&pdev->dev, res);
+	priv->map.virt = devm_ioremap_resource(&pdev->dev, res);
 	strcpy((char *)priv->map.name, res->name);
-	if (!priv->map.virt) {
-		dev_err(&pdev->dev, "failed to remap mem resource\n");
-		return -EBUSY;
-	}
+	if (IS_ERR(priv->map.virt))
+		return PTR_ERR(priv->map.virt);
 
 	simple_map_init(&priv->map);
 
diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c
index 3c3c791..d1da6ed 100644
--- a/drivers/mtd/maps/lantiq-flash.c
+++ b/drivers/mtd/maps/lantiq-flash.c
@@ -7,6 +7,7 @@
  *  Copyright (C) 2010 John Crispin <blogic@openwrt.org>
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -136,10 +137,9 @@ ltq_mtd_probe(struct platform_device *pdev)
 	ltq_mtd->map = kzalloc(sizeof(struct map_info), GFP_KERNEL);
 	ltq_mtd->map->phys = ltq_mtd->res->start;
 	ltq_mtd->map->size = resource_size(ltq_mtd->res);
-	ltq_mtd->map->virt = devm_request_and_ioremap(&pdev->dev, ltq_mtd->res);
-	if (!ltq_mtd->map->virt) {
-		dev_err(&pdev->dev, "failed to remap mem resource\n");
-		err = -EBUSY;
+	ltq_mtd->map->virt = devm_ioremap_resource(&pdev->dev, ltq_mtd->res);
+	if (IS_ERR(ltq_mtd->map->virt)) {
+		err = PTR_ERR(ltq_mtd->map->virt);
 		goto err_out;
 	}
 
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 5819eb5..81bf5e5 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -260,8 +260,7 @@ config MTD_NAND_S3C2410_CLKSTOP
 	  approximately 5mA of power when there is nothing happening.
 
 config MTD_NAND_DISKONCHIP
-	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation)"
 	depends on HAS_IOMEM
 	select REED_SOLOMON
 	select REED_SOLOMON_DEC16
@@ -331,8 +330,8 @@ config MTD_NAND_DISKONCHIP_BBTWRITE
 	  parameter "inftl_bbt_write=1".
 
 config MTD_NAND_DOCG4
-	tristate "Support for DiskOnChip G4 (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && HAS_IOMEM
+	tristate "Support for DiskOnChip G4"
+	depends on HAS_IOMEM
 	select BCH
 	select BITREVERSE
 	help
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 67e62d3..c543cc0 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -937,42 +937,35 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	if (!res)
 		return -EINVAL;
 
-	host->data_va = devm_request_and_ioremap(&pdev->dev, res);
-	if (!host->data_va) {
-		dev_err(&pdev->dev, "data ioremap failed\n");
-		return -ENOMEM;
-	}
+	host->data_va = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(host->data_va))
+		return PTR_ERR(host->data_va);
+	
 	host->data_pa = (dma_addr_t)res->start;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr");
 	if (!res)
 		return -EINVAL;
 
-	host->addr_va = devm_request_and_ioremap(&pdev->dev, res);
-	if (!host->addr_va) {
-		dev_err(&pdev->dev, "ale ioremap failed\n");
-		return -ENOMEM;
-	}
+	host->addr_va = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(host->addr_va))
+		return PTR_ERR(host->addr_va);
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd");
 	if (!res)
 		return -EINVAL;
 
-	host->cmd_va = devm_request_and_ioremap(&pdev->dev, res);
-	if (!host->cmd_va) {
-		dev_err(&pdev->dev, "ale ioremap failed\n");
-		return -ENOMEM;
-	}
+	host->cmd_va = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(host->cmd_va))
+		return PTR_ERR(host->cmd_va);
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fsmc_regs");
 	if (!res)
 		return -EINVAL;
 
-	host->regs_va = devm_request_and_ioremap(&pdev->dev, res);
-	if (!host->regs_va) {
-		dev_err(&pdev->dev, "regs ioremap failed\n");
-		return -ENOMEM;
-	}
+	host->regs_va = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(host->regs_va))
+		return PTR_ERR(host->regs_va);
 
 	host->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(host->clk)) {
diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c
index f182bef..0ca22ae 100644
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -677,11 +677,10 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	host->io_base = devm_request_and_ioremap(&pdev->dev, rc);
-	if (host->io_base == NULL) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		return -EIO;
-	}
+	host->io_base = devm_ioremap_resource(&pdev->dev, rc);
+	if (IS_ERR(host->io_base))
+		return PTR_ERR(host->io_base);
+	
 	host->io_base_phy = rc->start;
 
 	mtd = &host->mtd;
diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index 030b78c..be94ed5 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -778,11 +778,9 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 	}
 	host->io_base_dma = rc->start;
 
-	host->io_base = devm_request_and_ioremap(&pdev->dev, rc);
-	if (host->io_base == NULL) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		return -ENOMEM;
-	}
+	host->io_base = devm_ioremap_resource(&pdev->dev, rc);
+	if (IS_ERR(host->io_base))
+		return PTR_ERR(host->io_base);
 
 	if (pdev->dev.of_node)
 		host->ncfg = lpc32xx_parse_dt(&pdev->dev);
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 45204e4..60ac5b9 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -1437,9 +1437,9 @@ static int mxcnd_probe(struct platform_device *pdev)
 		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 		if (!res)
 			return -ENODEV;
-		host->regs_ip = devm_request_and_ioremap(&pdev->dev, res);
-		if (!host->regs_ip)
-			return -ENOMEM;
+		host->regs_ip = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(host->regs_ip))
+			return PTR_ERR(host->regs_ip);
 
 		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 	} else {
@@ -1449,9 +1449,9 @@ static int mxcnd_probe(struct platform_device *pdev)
 	if (!res)
 		return -ENODEV;
 
-	host->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!host->base)
-		return -ENOMEM;
+	host->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(host->base))
+		return PTR_ERR(host->base);
 
 	host->main_area0 = host->base;
 
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index df954b4..d65afd2 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -952,10 +952,9 @@ static int s3c24xx_nand_probe(struct platform_device *pdev)
 	info->platform	= plat;
 	info->cpu_type	= cpu_type;
 
-	info->regs	= devm_request_and_ioremap(&pdev->dev, res);
-	if (info->regs == NULL) {
-		dev_err(&pdev->dev, "cannot reserve register region\n");
-		err = -EIO;
+	info->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(info->regs)) {
+		err = PTR_ERR(info->regs);
 		goto exit_error;
 	}
 
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index e3d7266..e1e8748 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -9,6 +9,7 @@
  * (C) Copyright TOSHIBA CORPORATION 2004-2007
  * All Rights Reserved.
  */
+#include <linux/err.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -286,9 +287,9 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
 	drvdata = devm_kzalloc(&dev->dev, sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
-	drvdata->base = devm_request_and_ioremap(&dev->dev, res);
-	if (!drvdata->base)
-		return -EBUSY;
+	drvdata->base = devm_ioremap_resource(&dev->dev, res);
+	if (IS_ERR(drvdata->base))
+		return PTR_ERR(drvdata->base);
 
 	hold = plat->hold ?: 20; /* tDH */
 	spw = plat->spw ?: 90; /* max(tREADID, tWP, tRP) */
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 6a70184..2334190 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -123,8 +123,7 @@ config IFB
 source "drivers/net/team/Kconfig"
 
 config MACVLAN
-	tristate "MAC-VLAN support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "MAC-VLAN support"
 	---help---
 	  This allows one to create virtual interfaces that map packets to
 	  or from specific MAC addresses to a particular interface.
@@ -138,7 +137,7 @@ config MACVLAN
 	  will be called macvlan.
 
 config MACVTAP
-	tristate "MAC-VLAN based tap driver (EXPERIMENTAL)"
+	tristate "MAC-VLAN based tap driver"
 	depends on MACVLAN
 	help
 	  This adds a specialized tap character device driver that is based
@@ -234,8 +233,8 @@ config VETH
 	  versa.
 
 config VIRTIO_NET
-	tristate "Virtio network driver (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && VIRTIO
+	tristate "Virtio network driver"
+	depends on VIRTIO
 	---help---
 	  This is the virtual network driver for virtio.  It can be used with
 	  lguest or QEMU based VMMs (like KVM or Xen).  Say Y or M.
diff --git a/drivers/net/ethernet/8390/Kconfig b/drivers/net/ethernet/8390/Kconfig
index 1b78ca7..a5f91e1 100644
--- a/drivers/net/ethernet/8390/Kconfig
+++ b/drivers/net/ethernet/8390/Kconfig
@@ -5,10 +5,7 @@
 config NET_VENDOR_8390
 	bool "National Semi-conductor 8390 devices"
 	default y
-	depends on NET_VENDOR_NATSEMI && (AMIGA_PCMCIA || PCI || SUPERH || \
-		   ISA || MAC || M32R || MACH_TX49XX || \
-		   H8300 || ARM || MIPS || ZORRO || PCMCIA || \
-		   EXPERIMENTAL)
+	depends on NET_VENDOR_NATSEMI
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/atheros/Kconfig b/drivers/net/ethernet/atheros/Kconfig
index 1ed886d..36d6abd 100644
--- a/drivers/net/ethernet/atheros/Kconfig
+++ b/drivers/net/ethernet/atheros/Kconfig
@@ -44,8 +44,8 @@ config ATL1
 	  will be called atl1.
 
 config ATL1E
-	tristate "Atheros L1E Gigabit Ethernet support (EXPERIMENTAL)"
-	depends on PCI && EXPERIMENTAL
+	tristate "Atheros L1E Gigabit Ethernet support"
+	depends on PCI
 	select CRC32
 	select NET_CORE
 	select MII
@@ -56,8 +56,8 @@ config ATL1E
 	  will be called atl1e.
 
 config ATL1C
-	tristate "Atheros L1C Gigabit Ethernet support (EXPERIMENTAL)"
-	depends on PCI && EXPERIMENTAL
+	tristate "Atheros L1C Gigabit Ethernet support"
+	depends on PCI
 	select CRC32
 	select NET_CORE
 	select MII
diff --git a/drivers/net/ethernet/dec/tulip/Kconfig b/drivers/net/ethernet/dec/tulip/Kconfig
index 1203be0..0c37fb2 100644
--- a/drivers/net/ethernet/dec/tulip/Kconfig
+++ b/drivers/net/ethernet/dec/tulip/Kconfig
@@ -57,8 +57,8 @@ config TULIP
 	  be called tulip.
 
 config TULIP_MWI
-	bool "New bus configuration (EXPERIMENTAL)"
-	depends on TULIP && EXPERIMENTAL
+	bool "New bus configuration"
+	depends on TULIP
 	---help---
 	  This configures your Tulip card specifically for the card and
 	  system cache line size type you are using.
diff --git a/drivers/net/ethernet/fujitsu/Kconfig b/drivers/net/ethernet/fujitsu/Kconfig
index c6a8762..6231bc0 100644
--- a/drivers/net/ethernet/fujitsu/Kconfig
+++ b/drivers/net/ethernet/fujitsu/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_FUJITSU
 	bool "Fujitsu devices"
 	default y
-	depends on ISA || PCMCIA || (ISA && EXPERIMENTAL)
+	depends on ISA || PCMCIA
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/i825xx/Kconfig b/drivers/net/ethernet/i825xx/Kconfig
index 955d929..9521e68 100644
--- a/drivers/net/ethernet/i825xx/Kconfig
+++ b/drivers/net/ethernet/i825xx/Kconfig
@@ -5,9 +5,7 @@
 config NET_VENDOR_I825XX
 	bool "Intel (82586/82593/82596) devices"
 	default y
-	depends on NET_VENDOR_INTEL && (ISA || ISA_DMA_API || ARM || \
-		   ARCH_ACORN || SNI_RM || SUN3 || \
-		   GSC || BVME6000 || MVME16x || EXPERIMENTAL)
+	depends on NET_VENDOR_INTEL
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/icplus/Kconfig b/drivers/net/ethernet/icplus/Kconfig
index 3aff81d..5119ef1 100644
--- a/drivers/net/ethernet/icplus/Kconfig
+++ b/drivers/net/ethernet/icplus/Kconfig
@@ -4,7 +4,7 @@
 
 config IP1000
 	tristate "IP1000 Gigabit Ethernet support"
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	select NET_CORE
 	select MII
 	---help---
diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig
index 3d5f6d4..05f7264 100644
--- a/drivers/net/ethernet/intel/Kconfig
+++ b/drivers/net/ethernet/intel/Kconfig
@@ -5,11 +5,6 @@
 config NET_VENDOR_INTEL
 	bool "Intel devices"
 	default y
-	depends on PCI || PCI_MSI || ISA || ISA_DMA_API || ARM || \
-		   ARCH_ACORN || SNI_RM || SUN3 || \
-		   GSC || BVME6000 || MVME16x || \
-		   (ARM && ARCH_IXP4XX && IXP4XX_NPE && IXP4XX_QMGR) || \
-		   EXPERIMENTAL
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/microchip/Kconfig b/drivers/net/ethernet/microchip/Kconfig
index 8163fd0..afaf0c0 100644
--- a/drivers/net/ethernet/microchip/Kconfig
+++ b/drivers/net/ethernet/microchip/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_MICROCHIP
 	bool "Microchip devices"
 	default y
-	depends on SPI && EXPERIMENTAL
+	depends on SPI
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
@@ -20,7 +20,7 @@ if NET_VENDOR_MICROCHIP
 
 config ENC28J60
 	tristate "ENC28J60 support"
-	depends on SPI && EXPERIMENTAL
+	depends on SPI
 	select CRC32
 	---help---
 	  Support for the Microchip EN28J60 ethernet chip.
diff --git a/drivers/net/ethernet/natsemi/Kconfig b/drivers/net/ethernet/natsemi/Kconfig
index f157334..a100860 100644
--- a/drivers/net/ethernet/natsemi/Kconfig
+++ b/drivers/net/ethernet/natsemi/Kconfig
@@ -5,9 +5,6 @@
 config NET_VENDOR_NATSEMI
 	bool "National Semi-conductor devices"
 	default y
-	depends on AMIGA_PCMCIA || ARM || EISA || EXPERIMENTAL || H8300 || \
-		   ISA || M32R || MAC || MACH_JAZZ || MACH_TX49XX || MIPS || \
-		   PCI || PCMCIA || SUPERH || XTENSA_PLATFORM_XT2000 || ZORRO
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/packetengines/Kconfig b/drivers/net/ethernet/packetengines/Kconfig
index 8f29feb..cbbeca3 100644
--- a/drivers/net/ethernet/packetengines/Kconfig
+++ b/drivers/net/ethernet/packetengines/Kconfig
@@ -32,8 +32,8 @@ config HAMACHI
 	  called hamachi.
 
 config YELLOWFIN
-	tristate "Packet Engines Yellowfin Gigabit-NIC support (EXPERIMENTAL)"
-	depends on PCI && EXPERIMENTAL
+	tristate "Packet Engines Yellowfin Gigabit-NIC support"
+	depends on PCI
 	select CRC32
 	---help---
 	  Say Y here if you have a Packet Engines G-NIC PCI Gigabit Ethernet
diff --git a/drivers/net/ethernet/realtek/Kconfig b/drivers/net/ethernet/realtek/Kconfig
index 5821966..783fa8b 100644
--- a/drivers/net/ethernet/realtek/Kconfig
+++ b/drivers/net/ethernet/realtek/Kconfig
@@ -34,8 +34,8 @@ config ATP
 	  will be called atp.
 
 config 8139CP
-	tristate "RealTek RTL-8139 C+ PCI Fast Ethernet Adapter support (EXPERIMENTAL)"
-	depends on PCI && EXPERIMENTAL
+	tristate "RealTek RTL-8139 C+ PCI Fast Ethernet Adapter support"
+	depends on PCI
 	select CRC32
 	select NET_CORE
 	select MII
diff --git a/drivers/net/ethernet/seeq/Kconfig b/drivers/net/ethernet/seeq/Kconfig
index a71e1ec..11f168e 100644
--- a/drivers/net/ethernet/seeq/Kconfig
+++ b/drivers/net/ethernet/seeq/Kconfig
@@ -6,7 +6,6 @@ config NET_VENDOR_SEEQ
 	bool "SEEQ devices"
 	default y
 	depends on HAS_IOMEM
-	depends on (ARM && ARCH_ACORN) || SGI_HAS_SEEQ || EXPERIMENTAL
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
diff --git a/drivers/net/ethernet/silan/Kconfig b/drivers/net/ethernet/silan/Kconfig
index ae1ce17..3409b3f 100644
--- a/drivers/net/ethernet/silan/Kconfig
+++ b/drivers/net/ethernet/silan/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_SILAN
 	bool "Silan devices"
 	default y
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
@@ -19,8 +19,8 @@ config NET_VENDOR_SILAN
 if NET_VENDOR_SILAN
 
 config SC92031
-	tristate "Silan SC92031 PCI Fast Ethernet Adapter driver (EXPERIMENTAL)"
-	depends on PCI && EXPERIMENTAL
+	tristate "Silan SC92031 PCI Fast Ethernet Adapter driver"
+	depends on PCI
 	select CRC32
 	---help---
 	  This is a driver for the Fast Ethernet PCI network cards based on
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index 1164930..c0ea838 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -26,8 +26,8 @@ config STMMAC_PLATFORM
 	  If unsure, say N.
 
 config STMMAC_PCI
-	bool "STMMAC PCI bus support (EXPERIMENTAL)"
-	depends on STMMAC_ETH && PCI && EXPERIMENTAL
+	bool "STMMAC PCI bus support"
+	depends on STMMAC_ETH && PCI
 	---help---
 	  This is to select the Synopsys DWMAC available on PCI devices,
 	  if you have a controller with this interface, say Y or M here.
diff --git a/drivers/net/ethernet/sun/Kconfig b/drivers/net/ethernet/sun/Kconfig
index 57bfd85..ae3a355 100644
--- a/drivers/net/ethernet/sun/Kconfig
+++ b/drivers/net/ethernet/sun/Kconfig
@@ -32,8 +32,8 @@ config HAPPYMEAL
 	  will be called sunhme.
 
 config SUNBMAC
-	tristate "Sun BigMAC 10/100baseT support (EXPERIMENTAL)"
-	depends on SBUS && EXPERIMENTAL
+	tristate "Sun BigMAC 10/100baseT support"
+	depends on SBUS
 	select CRC32
 	---help---
 	  This driver supports the "be" interface available as an Sbus option.
diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index 4426151..de71b1e 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -88,8 +88,8 @@ config TLAN
 	  Please email feedback to <torben.mathiasen@compaq.com>.
 
 config CPMAC
-	tristate "TI AR7 CPMAC Ethernet support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && AR7
+	tristate "TI AR7 CPMAC Ethernet support"
+	depends on AR7
 	select PHYLIB
 	---help---
 	  TI AR7 CPMAC Ethernet support
diff --git a/drivers/net/hippi/Kconfig b/drivers/net/hippi/Kconfig
index 95eb34f..f71515d 100644
--- a/drivers/net/hippi/Kconfig
+++ b/drivers/net/hippi/Kconfig
@@ -3,8 +3,8 @@
 #
 
 config HIPPI
-	bool "HIPPI driver support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && INET && PCI
+	bool "HIPPI driver support"
+	depends on INET && PCI
 	---help---
 	  HIgh Performance Parallel Interface (HIPPI) is a 800Mbit/sec and
 	  1600Mbit/sec dual-simplex switched or point-to-point network. HIPPI
@@ -18,7 +18,7 @@ config HIPPI
 if HIPPI
 
 config ROADRUNNER
-	tristate "Essential RoadRunner HIPPI PCI adapter support (EXPERIMENTAL)"
+	tristate "Essential RoadRunner HIPPI PCI adapter support"
 	depends on PCI
 	---help---
 	  Say Y here if this is your PCI HIPPI network card.
@@ -27,7 +27,7 @@ config ROADRUNNER
 	  will be called rrunner.  If unsure, say N.
 
 config ROADRUNNER_LARGE_RINGS
-	bool "Use large TX/RX rings (EXPERIMENTAL)"
+	bool "Use large TX/RX rings"
 	depends on ROADRUNNER
 	---help---
 	  If you say Y here, the RoadRunner driver will preallocate up to 2 MB
diff --git a/drivers/net/irda/Kconfig b/drivers/net/irda/Kconfig
index 5952054..59e9d9e 100644
--- a/drivers/net/irda/Kconfig
+++ b/drivers/net/irda/Kconfig
@@ -140,7 +140,7 @@ config LITELINK_DONGLE
 
 config MA600_DONGLE
 	tristate "Mobile Action MA600 dongle"
-	depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+	depends on IRTTY_SIR && DONGLE && IRDA
 	help
 	  Say Y here if you want to build support for the Mobile Action MA600
 	  dongle.  To compile it as a module, choose M here. The MA600 dongle
@@ -153,7 +153,7 @@ config MA600_DONGLE
 
 config GIRBIL_DONGLE
 	tristate "Greenwich GIrBIL dongle"
-	depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+	depends on IRTTY_SIR && DONGLE && IRDA
 	help
 	  Say Y here if you want to build support for the Greenwich GIrBIL
 	  dongle.  If you want to compile it as a module, choose M here.
@@ -164,7 +164,7 @@ config GIRBIL_DONGLE
 
 config MCP2120_DONGLE
 	tristate "Microchip MCP2120"
-	depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+	depends on IRTTY_SIR && DONGLE && IRDA
 	help
 	  Say Y here if you want to build support for the Microchip MCP2120
 	  dongle.  If you want to compile it as a module, choose M here.
@@ -178,7 +178,7 @@ config MCP2120_DONGLE
 
 config OLD_BELKIN_DONGLE
 	tristate "Old Belkin dongle"
-	depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+	depends on IRTTY_SIR && DONGLE && IRDA
 	help
 	  Say Y here if you want to build support for the Adaptec Airport 1000
 	  and 2000 dongles.  If you want to compile it as a module, choose
@@ -187,7 +187,7 @@ config OLD_BELKIN_DONGLE
 
 config ACT200L_DONGLE
 	tristate "ACTiSYS IR-200L dongle"
-	depends on IRTTY_SIR && DONGLE && IRDA && EXPERIMENTAL
+	depends on IRTTY_SIR && DONGLE && IRDA
 	help
 	  Say Y here if you want to build support for the ACTiSYS IR-200L
 	  dongle. If you want to compile it as a module, choose M here.
@@ -198,7 +198,7 @@ config ACT200L_DONGLE
 
 config KINGSUN_DONGLE
 	tristate "KingSun/DonShine DS-620 IrDA-USB dongle"
-	depends on IRDA && USB && EXPERIMENTAL
+	depends on IRDA && USB
 	help
 	  Say Y or M here if you want to build support for the KingSun/DonShine
 	  DS-620 IrDA-USB bridge device driver.
@@ -212,14 +212,14 @@ config KINGSUN_DONGLE
 
 config EP7211_DONGLE
 	tristate "Cirrus Logic clps711x I/R support"
-	depends on IRTTY_SIR && ARCH_CLPS711X && IRDA && EXPERIMENTAL
+	depends on IRTTY_SIR && ARCH_CLPS711X && IRDA
 	help
 	  Say Y here if you want to build support for the Cirrus logic
 	  EP7211 chipset's infrared module.
 
 config KSDAZZLE_DONGLE
-	tristate "KingSun Dazzle IrDA-USB dongle (EXPERIMENTAL)"
-	depends on IRDA && USB && EXPERIMENTAL
+	tristate "KingSun Dazzle IrDA-USB dongle"
+	depends on IRDA && USB
 	help
 	  Say Y or M here if you want to build support for the KingSun Dazzle
 	  IrDA-USB bridge device driver.
@@ -232,8 +232,8 @@ config KSDAZZLE_DONGLE
 	  ksdazzle-sir.
 
 config KS959_DONGLE
-	tristate "KingSun KS-959 IrDA-USB dongle (EXPERIMENTAL)"
-	depends on IRDA && USB && EXPERIMENTAL
+	tristate "KingSun KS-959 IrDA-USB dongle"
+	depends on IRDA && USB
 	help
 	  Say Y or M here if you want to build support for the KingSun KS-959
 	  IrDA-USB bridge device driver.
@@ -264,8 +264,8 @@ config USB_IRDA
 	  you will need both USB and IrDA support in your kernel...
 
 config SIGMATEL_FIR
-	tristate "SigmaTel STIr4200 bridge (EXPERIMENTAL)"
-	depends on IRDA && USB && EXPERIMENTAL
+	tristate "SigmaTel STIr4200 bridge"
+	depends on IRDA && USB
 	select CRC32
 	---help---
 	  Say Y here if you want to build support for the SigmaTel STIr4200
@@ -331,8 +331,8 @@ config SMC_IRCC_FIR
 	  smsc-ircc2.o.
 
 config ALI_FIR
-	tristate "ALi M5123 FIR (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && IRDA && ISA_DMA_API
+	tristate "ALi M5123 FIR"
+	depends on IRDA && ISA_DMA_API
 	help
 	  Say Y here if you want to build support for the ALi M5123 FIR
 	  Controller.  The ALi M5123 FIR Controller is embedded in ALi M1543C,
@@ -343,8 +343,8 @@ config ALI_FIR
 	  ali-ircc.
 
 config VLSI_FIR
-	tristate "VLSI 82C147 SIR/MIR/FIR (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && IRDA && PCI
+	tristate "VLSI 82C147 SIR/MIR/FIR"
+	depends on IRDA && PCI
 	help
 	  Say Y here if you want to build support for the VLSI 82C147
 	  PCI-IrDA Controller. This controller is used by the HP OmniBook 800
@@ -387,7 +387,7 @@ config PXA_FICP
 
 config MCS_FIR
 	tristate "MosChip MCS7780 IrDA-USB dongle"
-	depends on IRDA && USB && EXPERIMENTAL
+	depends on IRDA && USB
 	select CRC32
 	help
 	  Say Y or M here if you want to build support for the MosChip
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 044b532..dc92097 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -95,7 +95,7 @@ static struct class mdio_bus_class = {
 
 #if IS_ENABLED(CONFIG_OF_MDIO)
 /* Helper function for of_mdio_find_bus */
-static int of_mdio_bus_match(struct device *dev, void *mdio_bus_np)
+static int of_mdio_bus_match(struct device *dev, const void *mdio_bus_np)
 {
 	return dev->of_node == mdio_bus_np;
 }
diff --git a/drivers/net/ppp/Kconfig b/drivers/net/ppp/Kconfig
index 872df3e..278dea0 100644
--- a/drivers/net/ppp/Kconfig
+++ b/drivers/net/ppp/Kconfig
@@ -82,8 +82,8 @@ config PPP_FILTER
 	  If unsure, say N.
 
 config PPP_MPPE
-	tristate "PPP MPPE compression (encryption) (EXPERIMENTAL)"
-	depends on PPP && EXPERIMENTAL
+	tristate "PPP MPPE compression (encryption)"
+	depends on PPP
 	select CRYPTO
 	select CRYPTO_SHA1
 	select CRYPTO_ARC4
@@ -96,8 +96,8 @@ config PPP_MPPE
 	  configuring PPTP clients and servers to utilize this method.
 
 config PPP_MULTILINK
-	bool "PPP multilink support (EXPERIMENTAL)"
-	depends on PPP && EXPERIMENTAL
+	bool "PPP multilink support"
+	depends on PPP
 	---help---
 	  PPP multilink is a protocol (defined in RFC 1990) which allows you
 	  to combine several (logical or physical) lines into one logical PPP
@@ -118,8 +118,8 @@ config PPPOATM
 	  changes its encapsulation unilaterally.
 
 config PPPOE
-	tristate "PPP over Ethernet (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PPP
+	tristate "PPP over Ethernet"
+	depends on PPP
 	---help---
 	  Support for PPP over Ethernet.
 
@@ -130,8 +130,8 @@ config PPPOE
 	  the heading "Kernel mode PPPoE").
 
 config PPTP
-	tristate "PPP over IPv4 (PPTP) (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && PPP && NET_IPGRE_DEMUX
+	tristate "PPP over IPv4 (PPTP)"
+	depends on PPP && NET_IPGRE_DEMUX
 	---help---
 	  Support for PPP over IPv4.(Point-to-Point Tunneling Protocol)
 
@@ -141,8 +141,8 @@ config PPTP
 	  utilize this module.
 
 config PPPOL2TP
-	tristate "PPP over L2TP (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && L2TP && PPP
+	tristate "PPP over L2TP"
+	depends on L2TP && PPP
 	---help---
 	  Support for PPP-over-L2TP socket family. L2TP is a protocol
 	  used by ISPs and enterprises to tunnel PPP traffic over UDP
diff --git a/drivers/net/team/Kconfig b/drivers/net/team/Kconfig
index 6b08bd4..c3011af 100644
--- a/drivers/net/team/Kconfig
+++ b/drivers/net/team/Kconfig
@@ -1,6 +1,5 @@
 menuconfig NET_TEAM
-	tristate "Ethernet team driver support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Ethernet team driver support"
 	---help---
 	  This allows one to create virtual interfaces that teams together
 	  multiple ethernet devices.
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index ef97621..3a44a5d 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -8,8 +8,7 @@ menu "USB Network Adapters"
 	depends on USB && NET
 
 config USB_CATC
-	tristate "USB CATC NetMate-based Ethernet device support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "USB CATC NetMate-based Ethernet device support"
 	select CRC32
 	---help---
 	  Say Y if you want to use one of the following 10Mbps USB Ethernet
@@ -83,8 +82,7 @@ config USB_PEGASUS
 	  module will be called pegasus.
 
 config USB_RTL8150
-	tristate "USB RTL8150 based ethernet device support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "USB RTL8150 based ethernet device support"
 	select NET_CORE
 	select MII
 	help
@@ -188,7 +186,7 @@ config USB_NET_CDCETHER
 
 config USB_NET_CDC_EEM
 	tristate "CDC EEM support"
-	depends on USB_USBNET && EXPERIMENTAL
+	depends on USB_USBNET
 	help
 	  This option supports devices conforming to the Communication Device
 	  Class (CDC) Ethernet Emulation Model, a specification that's easy to
@@ -287,7 +285,7 @@ config USB_NET_PLUSB
 	tristate "Prolific PL-2301/2302/25A1 based cables"
 	# if the handshake/init/reset problems, from original 'plusb',
 	# are ever resolved ... then remove "experimental"
-	depends on USB_USBNET && EXPERIMENTAL
+	depends on USB_USBNET
 	help
 	  Choose this option if you're using a host-to-host cable
 	  with one of these chips.
@@ -301,8 +299,8 @@ config USB_NET_MCS7830
 	  adapters marketed under the DeLOCK brand.
 
 config USB_NET_RNDIS_HOST
-	tristate "Host for RNDIS and ActiveSync devices (EXPERIMENTAL)"
-	depends on USB_USBNET && EXPERIMENTAL
+	tristate "Host for RNDIS and ActiveSync devices"
+	depends on USB_USBNET
 	select USB_NET_CDCETHER
 	help
 	  This option enables hosting "Remote NDIS" USB networking links,
@@ -380,7 +378,7 @@ config USB_EPSON2888
 
 config USB_KC2190
 	boolean "KT Technology KC2190 based cables (InstaNet)"
-	depends on USB_NET_CDC_SUBSET && EXPERIMENTAL
+	depends on USB_NET_CDC_SUBSET
 	help
 	  Choose this option if you're using a host-to-host cable
 	  with one of these chips.
diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig
index 0c077b0..13daec8 100644
--- a/drivers/net/wan/Kconfig
+++ b/drivers/net/wan/Kconfig
@@ -358,7 +358,7 @@ config SDLA
 
 # X.25 network drivers
 config LAPBETHER
-	tristate "LAPB over Ethernet driver (EXPERIMENTAL)"
+	tristate "LAPB over Ethernet driver"
 	depends on LAPB && X25
 	---help---
 	  Driver for a pseudo device (typically called /dev/lapb0) which allows
@@ -374,7 +374,7 @@ config LAPBETHER
 	  If unsure, say N.
 
 config X25_ASY
-	tristate "X.25 async driver (EXPERIMENTAL)"
+	tristate "X.25 async driver"
 	depends on LAPB && X25
 	---help---
 	  Send and receive X.25 frames over regular asynchronous serial
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index 28aa05f..f8f0156 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -138,7 +138,7 @@ config AIRO_CS
 
 config PCMCIA_WL3501
 	tristate "Planet WL3501 PCMCIA cards"
-	depends on EXPERIMENTAL && PCMCIA
+	depends on PCMCIA
 	select WIRELESS_EXT
 	select WEXT_SPY
 	help
@@ -148,7 +148,7 @@ config PCMCIA_WL3501
 
 config PRISM54
 	tristate 'Intersil Prism GT/Duette/Indigo PCI/Cardbus (DEPRECATED)'
-	depends on PCI && EXPERIMENTAL
+	depends on PCI
 	select WIRELESS_EXT
 	select WEXT_SPY
 	select WEXT_PRIV
@@ -187,7 +187,7 @@ config USB_ZD1201
 
 config USB_NET_RNDIS_WLAN
 	tristate "Wireless RNDIS USB support"
-	depends on USB && EXPERIMENTAL
+	depends on USB
 	depends on CFG80211
 	select USB_USBNET
 	select USB_NET_CDCETHER
@@ -217,7 +217,7 @@ source "drivers/net/wireless/rtl818x/Kconfig"
 
 config ADM8211
 	tristate "ADMtek ADM8211 support"
-	depends on MAC80211 && PCI && EXPERIMENTAL
+	depends on MAC80211 && PCI
 	select CRC32
 	select EEPROM_93CX6
 	---help---
@@ -257,7 +257,7 @@ config MAC80211_HWSIM
 
 config MWL8K
 	tristate "Marvell 88W8xxx PCI/PCIe Wireless support"
-	depends on MAC80211 && PCI && EXPERIMENTAL
+	depends on MAC80211 && PCI
 	---help---
 	  This driver supports Marvell TOPDOG 802.11 wireless cards.
 
diff --git a/drivers/net/wireless/ath/ath6kl/Kconfig b/drivers/net/wireless/ath/ath6kl/Kconfig
index 26c4b72..630c83d 100644
--- a/drivers/net/wireless/ath/ath6kl/Kconfig
+++ b/drivers/net/wireless/ath/ath6kl/Kconfig
@@ -18,7 +18,6 @@ config ATH6KL_USB
 	depends on ATH6KL
 	depends on USB
 	depends on CFG80211
-	depends on EXPERIMENTAL
 	---help---
 	  This module adds support for wireless adapters based on
 	  Atheros AR6004 chipset running over USB. This is still under
diff --git a/drivers/net/wireless/ath/carl9170/Kconfig b/drivers/net/wireless/ath/carl9170/Kconfig
index 13a2045..1a796e5 100644
--- a/drivers/net/wireless/ath/carl9170/Kconfig
+++ b/drivers/net/wireless/ath/carl9170/Kconfig
@@ -1,6 +1,6 @@
 config CARL9170
 	tristate "Linux Community AR9170 802.11n USB support"
-	depends on USB && MAC80211 && EXPERIMENTAL
+	depends on USB && MAC80211
 	select ATH_COMMON
 	select FW_LOADER
 	select CRC32
diff --git a/drivers/net/wireless/ath/wil6210/dbg_hexdump.h b/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
index 6a315ba..e5712f0 100644
--- a/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
+++ b/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
@@ -1,25 +1,15 @@
 #ifndef WIL_DBG_HEXDUMP_H_
 #define WIL_DBG_HEXDUMP_H_
 
-#if defined(CONFIG_DYNAMIC_DEBUG)
-#define wil_dynamic_hex_dump(prefix_str, prefix_type, rowsize,	\
-			     groupsize, buf, len, ascii)	\
-do {								\
-	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor,		\
-		__builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\
-	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))	\
-		print_hex_dump(KERN_DEBUG, prefix_str,		\
-			       prefix_type, rowsize, groupsize,	\
-			       buf, len, ascii);		\
-} while (0)
+#include <linux/printk.h>
+#include <linux/dynamic_debug.h>
 
+#if defined(CONFIG_DYNAMIC_DEBUG)
 #define wil_print_hex_dump_debug(prefix_str, prefix_type, rowsize,	\
 				 groupsize, buf, len, ascii)		\
-	wil_dynamic_hex_dump(prefix_str, prefix_type, rowsize,		\
+	dynamic_hex_dump(prefix_str, prefix_type, rowsize,		\
 			     groupsize, buf, len, ascii)
 
-#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len)	\
-	wil_dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
 #else /* defined(CONFIG_DYNAMIC_DEBUG) */
 #define wil_print_hex_dump_debug(prefix_str, prefix_type, rowsize,	\
 				 groupsize, buf, len, ascii)		\
diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig
index 7a28d21..287c6b6 100644
--- a/drivers/net/wireless/b43/Kconfig
+++ b/drivers/net/wireless/b43/Kconfig
@@ -78,8 +78,8 @@ config B43_PCMCIA
 	  If unsure, say N.
 
 config B43_SDIO
-	bool "Broadcom 43xx SDIO device support (EXPERIMENTAL)"
-	depends on B43 && SSB_SDIOHOST_POSSIBLE && EXPERIMENTAL
+	bool "Broadcom 43xx SDIO device support"
+	depends on B43 && SSB_SDIOHOST_POSSIBLE
 	select SSB_SDIOHOST
 	---help---
 	  Broadcom 43xx device support for Soft-MAC SDIO devices.
@@ -109,8 +109,8 @@ config B43_PIO
 	default y
 
 config B43_PHY_N
-	bool "Support for 802.11n (N-PHY) devices (EXPERIMENTAL)"
-	depends on B43 && EXPERIMENTAL
+	bool "Support for 802.11n (N-PHY) devices"
+	depends on B43
 	---help---
 	  Support for the N-PHY.
 
@@ -130,8 +130,8 @@ config B43_PHY_LP
 	  (802.11a support is optional, and currently disabled).
 
 config B43_PHY_HT
-	bool "Support for HT-PHY (high throughput) devices (EXPERIMENTAL)"
-	depends on B43 && EXPERIMENTAL
+	bool "Support for HT-PHY (high throughput) devices"
+	depends on B43
 	---help---
 	  Support for the HT-PHY.
 
diff --git a/drivers/net/wireless/ipw2x00/Kconfig b/drivers/net/wireless/ipw2x00/Kconfig
index 2715b10..91c0cb3 100644
--- a/drivers/net/wireless/ipw2x00/Kconfig
+++ b/drivers/net/wireless/ipw2x00/Kconfig
@@ -137,7 +137,7 @@ config IPW2200_PROMISCUOUS
 
 config IPW2200_QOS
         bool "Enable QoS support"
-        depends on IPW2200 && EXPERIMENTAL
+        depends on IPW2200
 
 config IPW2200_DEBUG
 	bool "Enable full debugging output in IPW2200 module."
diff --git a/drivers/net/wireless/p54/Kconfig b/drivers/net/wireless/p54/Kconfig
index 0ec55b5..15ea36b 100644
--- a/drivers/net/wireless/p54/Kconfig
+++ b/drivers/net/wireless/p54/Kconfig
@@ -1,6 +1,6 @@
 config P54_COMMON
 	tristate "Softmac Prism54 support"
-	depends on MAC80211 && EXPERIMENTAL
+	depends on MAC80211
 	select FW_LOADER
 	select CRC_CCITT
 	---help---
diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index c7548da..44d6ead 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -82,7 +82,6 @@ config RT2800PCI_RT33XX
 
 config RT2800PCI_RT35XX
 	bool "rt2800pci - Include support for rt35xx devices (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	default y
 	---help---
 	  This adds support for rt35xx wireless chipset family to the
@@ -92,7 +91,6 @@ config RT2800PCI_RT35XX
 
 config RT2800PCI_RT53XX
        bool "rt2800pci - Include support for rt53xx devices (EXPERIMENTAL)"
-       depends on EXPERIMENTAL
        default y
        ---help---
          This adds support for rt53xx wireless chipset family to the
@@ -101,7 +99,6 @@ config RT2800PCI_RT53XX
 
 config RT2800PCI_RT3290
        bool "rt2800pci - Include support for rt3290 devices (EXPERIMENTAL)"
-       depends on EXPERIMENTAL
        default y
        ---help---
          This adds support for rt3290 wireless chipset family to the
@@ -159,7 +156,6 @@ config RT2800USB_RT33XX
 
 config RT2800USB_RT35XX
 	bool "rt2800usb - Include support for rt35xx devices (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
 	default y
 	---help---
 	  This adds support for rt35xx wireless chipset family to the
@@ -168,7 +164,6 @@ config RT2800USB_RT35XX
 
 config RT2800USB_RT53XX
        bool "rt2800usb - Include support for rt53xx devices (EXPERIMENTAL)"
-       depends on EXPERIMENTAL
        ---help---
          This adds support for rt53xx wireless chipset family to the
          rt2800usb driver.
diff --git a/drivers/net/wireless/rtl818x/Kconfig b/drivers/net/wireless/rtl818x/Kconfig
index 17d80fe5..3033217 100644
--- a/drivers/net/wireless/rtl818x/Kconfig
+++ b/drivers/net/wireless/rtl818x/Kconfig
@@ -3,7 +3,7 @@
 #
 config RTL8180
 	tristate "Realtek 8180/8185 PCI support"
-	depends on MAC80211 && PCI && EXPERIMENTAL
+	depends on MAC80211 && PCI
 	select EEPROM_93CX6
 	---help---
 	  This is a driver for RTL8180 and RTL8185 based cards.
diff --git a/drivers/net/wireless/zd1211rw/Kconfig b/drivers/net/wireless/zd1211rw/Kconfig
index 5f80969..96c8e1d 100644
--- a/drivers/net/wireless/zd1211rw/Kconfig
+++ b/drivers/net/wireless/zd1211rw/Kconfig
@@ -1,6 +1,6 @@
 config ZD1211RW
 	tristate "ZyDAS ZD1211/ZD1211B USB-wireless support"
-	depends on USB && MAC80211 && EXPERIMENTAL
+	depends on USB && MAC80211
 	select FW_LOADER
 	---help---
 	  This is an experimental driver for the ZyDAS ZD1211/ZD1211B wireless
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig
index 8fd255f..b90f85b 100644
--- a/drivers/pcmcia/Kconfig
+++ b/drivers/pcmcia/Kconfig
@@ -36,8 +36,8 @@ config PCMCIA
 	   If unsure, say Y.
 
 config PCMCIA_LOAD_CIS
-	bool "Load CIS updates from userspace (EXPERIMENTAL)"
-	depends on PCMCIA && EXPERIMENTAL
+	bool "Load CIS updates from userspace"
+	depends on PCMCIA
 	select FW_LOADER
 	default y
 	help
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 471c71f..75933a6 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1503,10 +1503,9 @@ static int at91_gpio_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	at91_chip->regbase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!at91_chip->regbase) {
-		dev_err(&pdev->dev, "failed to map registers, ignoring.\n");
-		ret = -EBUSY;
+	at91_chip->regbase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(at91_chip->regbase)) {
+		ret = PTR_ERR(at91_chip->regbase);
 		goto err;
 	}
 
diff --git a/drivers/pinctrl/pinctrl-bcm2835.c b/drivers/pinctrl/pinctrl-bcm2835.c
index d347b9f..4eb6d2c 100644
--- a/drivers/pinctrl/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/pinctrl-bcm2835.c
@@ -959,9 +959,9 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	pc->base = devm_request_and_ioremap(dev, &iomem);
-	if (!pc->base)
-		return -EADDRNOTAVAIL;
+	pc->base = devm_ioremap_resource(dev, &iomem);
+	if (IS_ERR(pc->base))
+		return PTR_ERR(pc->base);
 
 	pc->gpio_chip = bcm2835_gpio_chip;
 	pc->gpio_chip.dev = dev;
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index fbb3715..8b7e7bc 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -715,11 +715,9 @@ static int __init u300_gpio_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	gpio->base = devm_request_and_ioremap(&pdev->dev, memres);
-	if (!gpio->base) {
-		dev_err(gpio->dev, "could not get remap memory\n");
-		return -ENOMEM;
-	}
+	gpio->base = devm_ioremap_resource(&pdev->dev, memres);
+	if (IS_ERR(gpio->base))
+		return PTR_ERR(gpio->base);
 
 	gpio->clk = devm_clk_get(gpio->dev, NULL);
 	if (IS_ERR(gpio->clk)) {
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
index 1427299..1376eb7 100644
--- a/drivers/pinctrl/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -866,11 +866,9 @@ static int exynos5440_pinctrl_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	priv->reg_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!priv->reg_base) {
-		dev_err(dev, "ioremap failed\n");
-		return -ENODEV;
-	}
+	priv->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->reg_base))
+		return PTR_ERR(priv->reg_base);
 
 	ret = exynos5440_gpiolib_register(pdev, priv);
 	if (ret)
diff --git a/drivers/pinctrl/pinctrl-falcon.c b/drivers/pinctrl/pinctrl-falcon.c
index 4a0d54a..af97a1f 100644
--- a/drivers/pinctrl/pinctrl-falcon.c
+++ b/drivers/pinctrl/pinctrl-falcon.c
@@ -447,14 +447,11 @@ static int pinctrl_falcon_probe(struct platform_device *pdev)
 			dev_err(&ppdev->dev, "failed to get clock\n");
 			return PTR_ERR(falcon_info.clk[*bank]);
 		}
-		falcon_info.membase[*bank] =
-				devm_request_and_ioremap(&pdev->dev, &res);
-		if (!falcon_info.membase[*bank]) {
-			dev_err(&pdev->dev,
-				"Failed to remap memory for bank %d\n",
-				*bank);
-			return -ENOMEM;
-		}
+		falcon_info.membase[*bank] = devm_ioremap_resource(&pdev->dev,
+								   &res);
+		if (IS_ERR(falcon_info.membase[*bank]))
+			return PTR_ERR(falcon_info.membase[*bank]);
+		
 		avail = pad_r32(falcon_info.membase[*bank],
 					LTQ_PADC_AVAIL);
 		pins = fls(avail);
diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c
index 43a6f1f..4cebb9c 100644
--- a/drivers/pinctrl/pinctrl-imx.c
+++ b/drivers/pinctrl/pinctrl-imx.c
@@ -584,9 +584,9 @@ int imx_pinctrl_probe(struct platform_device *pdev,
 	if (!res)
 		return -ENOENT;
 
-	ipctl->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!ipctl->base)
-		return -EBUSY;
+	ipctl->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ipctl->base))
+		return PTR_ERR(ipctl->base);
 
 	imx_pinctrl_desc.name = dev_name(&pdev->dev);
 	imx_pinctrl_desc.pins = info->pins;
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index de9e851..3c80dd9 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -1362,9 +1362,9 @@ static int nmk_gpio_probe(struct platform_device *dev)
 	if (secondary_irq >= 0 && !pdata->get_secondary_status)
 		return -EINVAL;
 
-	base = devm_request_and_ioremap(&dev->dev, res);
-	if (!base)
-		return -ENOMEM;
+	base = devm_ioremap_resource(&dev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	clk = devm_clk_get(&dev->dev, NULL);
 	if (IS_ERR(clk))
diff --git a/drivers/pinctrl/pinctrl-pxa3xx.c b/drivers/pinctrl/pinctrl-pxa3xx.c
index 51f8a38..1f49bb0 100644
--- a/drivers/pinctrl/pinctrl-pxa3xx.c
+++ b/drivers/pinctrl/pinctrl-pxa3xx.c
@@ -11,6 +11,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/io.h>
@@ -187,9 +188,9 @@ int pxa3xx_pinctrl_register(struct platform_device *pdev,
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res)
 		return -ENOENT;
-	info->virt_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!info->virt_base)
-		return -ENOMEM;
+	info->virt_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(info->virt_base))
+		return PTR_ERR(info->virt_base);
 	info->pctrl = pinctrl_register(desc, &pdev->dev, info);
 	if (!info->pctrl) {
 		dev_err(&pdev->dev, "failed to register PXA pinmux driver\n");
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index 5c20ed0..5f8441e 100644
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -916,11 +916,9 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	drvdata->virt_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!drvdata->virt_base) {
-		dev_err(dev, "ioremap failed\n");
-		return -ENODEV;
-	}
+	drvdata->virt_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(drvdata->virt_base))
+		return PTR_ERR(drvdata->virt_base);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (res)
diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c
index 718ec57..2b57725 100644
--- a/drivers/pinctrl/pinctrl-u300.c
+++ b/drivers/pinctrl/pinctrl-u300.c
@@ -1078,9 +1078,9 @@ static int u300_pmx_probe(struct platform_device *pdev)
 	if (!res)
 		return -ENOENT;
 
-	upmx->virtbase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!upmx->virtbase)
-		return -ENOMEM;
+	upmx->virtbase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(upmx->virtbase))
+		return PTR_ERR(upmx->virtbase);
 
 	upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx);
 	if (!upmx->pctl) {
diff --git a/drivers/pinctrl/pinctrl-xway.c b/drivers/pinctrl/pinctrl-xway.c
index 53cb6a3..068224e 100644
--- a/drivers/pinctrl/pinctrl-xway.c
+++ b/drivers/pinctrl/pinctrl-xway.c
@@ -9,6 +9,7 @@
  *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
  */
 
+#include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>
@@ -719,11 +720,9 @@ static int pinmux_xway_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Failed to get resource\n");
 		return -ENOENT;
 	}
-	xway_info.membase[0] = devm_request_and_ioremap(&pdev->dev, res);
-	if (!xway_info.membase[0]) {
-		dev_err(&pdev->dev, "Failed to remap resource\n");
-		return -ENOMEM;
-	}
+	xway_info.membase[0] = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(xway_info.membase[0]))
+		return PTR_ERR(xway_info.membase[0]);
 
 	match = of_match_device(xway_match, &pdev->dev);
 	if (match)
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
index 3cf4ecd..295b349 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -540,11 +540,9 @@ static int plgpio_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	plgpio->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!plgpio->base) {
-		dev_err(&pdev->dev, "request and ioremap fail\n");
-		return -ENOMEM;
-	}
+	plgpio->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(plgpio->base))
+		return PTR_ERR(plgpio->base);
 
 	ret = plgpio_probe_dt(pdev, plgpio);
 	if (ret) {
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index c86bae8..7ab0b2f 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -80,10 +80,9 @@ config ASUS_LAPTOP
 	  If you have an ACPI-compatible ASUS laptop, say Y or M here.
 
 config DELL_LAPTOP
-	tristate "Dell Laptop Extras (EXPERIMENTAL)"
+	tristate "Dell Laptop Extras"
 	depends on X86
 	depends on DCDBAS
-	depends on EXPERIMENTAL
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on RFKILL || RFKILL = n
 	depends on SERIO_I8042
@@ -171,9 +170,8 @@ config AMILO_RFKILL
 	  laptops.
 
 config TC1100_WMI
-	tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
+	tristate "HP Compaq TC1100 Tablet WMI Extras"
 	depends on !X86_64
-	depends on EXPERIMENTAL
 	depends on ACPI
 	depends on ACPI_WMI
 	---help---
diff --git a/drivers/power/jz4740-battery.c b/drivers/power/jz4740-battery.c
index bf91489..c675553 100644
--- a/drivers/power/jz4740-battery.c
+++ b/drivers/power/jz4740-battery.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 
 #include <linux/delay.h>
+#include <linux/err.h>
 #include <linux/gpio.h>
 #include <linux/mfd/core.h>
 #include <linux/power_supply.h>
@@ -266,9 +267,9 @@ static int jz_battery_probe(struct platform_device *pdev)
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	jz_battery->base = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!jz_battery->base)
-		return -EBUSY;
+	jz_battery->base = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(jz_battery->base))
+		return PTR_ERR(jz_battery->base);
 
 	battery = &jz_battery->battery;
 	battery->name = pdata->info.name;
diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 8a7cfb3..5deac43 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -141,7 +141,7 @@ int power_supply_set_battery_charged(struct power_supply *psy)
 }
 EXPORT_SYMBOL_GPL(power_supply_set_battery_charged);
 
-static int power_supply_match_device_by_name(struct device *dev, void *data)
+static int power_supply_match_device_by_name(struct device *dev, const void *data)
 {
 	const char *name = data;
 	struct power_supply *psy = dev_get_drvdata(dev);
@@ -149,7 +149,7 @@ static int power_supply_match_device_by_name(struct device *dev, void *data)
 	return strcmp(psy->name, name) == 0;
 }
 
-struct power_supply *power_supply_get_by_name(char *name)
+struct power_supply *power_supply_get_by_name(const char *name)
 {
 	struct device *dev = class_find_device(power_supply_class, NULL, name,
 					power_supply_match_device_by_name);
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 65a86bd..3f5677b 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -274,9 +274,9 @@ static int imx_pwm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	imx->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (imx->mmio_base == NULL)
-		return -EADDRNOTAVAIL;
+	imx->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(imx->mmio_base))
+		return PTR_ERR(imx->mmio_base);
 
 	data = of_id->data;
 	imx->config = data->config;
diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c
index 1410644..b3f0d0d 100644
--- a/drivers/pwm/pwm-lpc32xx.c
+++ b/drivers/pwm/pwm-lpc32xx.c
@@ -110,9 +110,9 @@ static int lpc32xx_pwm_probe(struct platform_device *pdev)
 	if (!res)
 		return -EINVAL;
 
-	lpc32xx->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!lpc32xx->base)
-		return -EADDRNOTAVAIL;
+	lpc32xx->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(lpc32xx->base))
+		return PTR_ERR(lpc32xx->base);
 
 	lpc32xx->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(lpc32xx->clk))
diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index 7ec345f..a53d309 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -139,9 +139,9 @@ static int mxs_pwm_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	mxs->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!mxs->base)
-		return -EADDRNOTAVAIL;
+	mxs->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(mxs->base))
+		return PTR_ERR(mxs->base);
 
 	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
 	if (IS_ERR(pinctrl))
diff --git a/drivers/pwm/pwm-puv3.c b/drivers/pwm/pwm-puv3.c
index b882f60..db964e6 100644
--- a/drivers/pwm/pwm-puv3.c
+++ b/drivers/pwm/pwm-puv3.c
@@ -123,9 +123,9 @@ static int pwm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	puv3->base = devm_request_and_ioremap(&pdev->dev, r);
-	if (puv3->base == NULL)
-		return -EADDRNOTAVAIL;
+	puv3->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(puv3->base))
+		return PTR_ERR(puv3->base);
 
 	puv3->chip.dev = &pdev->dev;
 	puv3->chip.ops = &puv3_pwm_ops;
diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c
index f32fc4e..20370e6 100644
--- a/drivers/pwm/pwm-pxa.c
+++ b/drivers/pwm/pwm-pxa.c
@@ -165,9 +165,9 @@ static int pwm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	pwm->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (pwm->mmio_base == NULL)
-		return -EADDRNOTAVAIL;
+	pwm->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(pwm->mmio_base))
+		return PTR_ERR(pwm->mmio_base);
 
 	ret = pwmchip_add(&pwm->chip);
 	if (ret < 0) {
diff --git a/drivers/pwm/pwm-spear.c b/drivers/pwm/pwm-spear.c
index 83b21d9..69a2d9e 100644
--- a/drivers/pwm/pwm-spear.c
+++ b/drivers/pwm/pwm-spear.c
@@ -192,9 +192,9 @@ static int spear_pwm_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!pc->mmio_base)
-		return -EADDRNOTAVAIL;
+	pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(pc->mmio_base))
+		return PTR_ERR(pc->mmio_base);
 
 	pc->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(pc->clk))
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index 30c0e2b..71900e8 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -186,9 +186,9 @@ static int tegra_pwm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	pwm->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!pwm->mmio_base)
-		return -EADDRNOTAVAIL;
+	pwm->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(pwm->mmio_base))
+		return PTR_ERR(pwm->mmio_base);
 
 	platform_set_drvdata(pdev, pwm);
 
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 5cf016d..27a67d6 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -238,9 +238,9 @@ static int ecap_pwm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!pc->mmio_base)
-		return -EADDRNOTAVAIL;
+	pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(pc->mmio_base))
+		return PTR_ERR(pc->mmio_base);
 
 	ret = pwmchip_add(&pc->chip);
 	if (ret < 0) {
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 72a6dd4..5a13995 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -453,9 +453,9 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!pc->mmio_base)
-		return  -EADDRNOTAVAIL;
+	pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(pc->mmio_base))
+		return PTR_ERR(pc->mmio_base);
 
 	/* Acquire tbclk for Time Base EHRPWM submodule */
 	pc->tbclk = devm_clk_get(&pdev->dev, "tbclk");
diff --git a/drivers/pwm/pwm-tipwmss.c b/drivers/pwm/pwm-tipwmss.c
index 3448a1c..17cbc59 100644
--- a/drivers/pwm/pwm-tipwmss.c
+++ b/drivers/pwm/pwm-tipwmss.c
@@ -75,9 +75,9 @@ static int pwmss_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	info->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!info->mmio_base)
-		return -EADDRNOTAVAIL;
+	info->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(info->mmio_base))
+		return PTR_ERR(info->mmio_base);
 
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index b0ba2d4..f9de9b2 100644
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -178,9 +178,9 @@ static int vt8500_pwm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	chip->base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!chip->base)
-		return -EADDRNOTAVAIL;
+	chip->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(chip->base))
+		return PTR_ERR(chip->base);
 
 	ret = clk_prepare(chip->clk);
 	if (ret < 0) {
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 96ce101..0b24108 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -1,16 +1,14 @@
-menu "Remoteproc drivers (EXPERIMENTAL)"
+menu "Remoteproc drivers"
 
 # REMOTEPROC gets selected by whoever wants it
 config REMOTEPROC
 	tristate
-	depends on EXPERIMENTAL
 	depends on HAS_DMA
 	select FW_CONFIG
 	select VIRTIO
 
 config OMAP_REMOTEPROC
 	tristate "OMAP remoteproc support"
-	depends on EXPERIMENTAL
 	depends on HAS_DMA
 	depends on ARCH_OMAP4
 	depends on OMAP_IOMMU
@@ -32,7 +30,6 @@ config OMAP_REMOTEPROC
 
 config STE_MODEM_RPROC
 	tristate "STE-Modem remoteproc support"
-	depends on EXPERIMENTAL
 	depends on HAS_DMA
 	select REMOTEPROC
 	default n
diff --git a/drivers/rpmsg/Kconfig b/drivers/rpmsg/Kconfig
index 2bd911f..f6e0ea6 100644
--- a/drivers/rpmsg/Kconfig
+++ b/drivers/rpmsg/Kconfig
@@ -1,9 +1,8 @@
-menu "Rpmsg drivers (EXPERIMENTAL)"
+menu "Rpmsg drivers"
 
 # RPMSG always gets selected by whoever wants it
 config RPMSG
 	tristate
 	select VIRTIO
-	depends on EXPERIMENTAL
 
 endmenu
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 9592b93..42bd57d 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -587,16 +587,16 @@ void rtc_update_irq(struct rtc_device *rtc,
 }
 EXPORT_SYMBOL_GPL(rtc_update_irq);
 
-static int __rtc_match(struct device *dev, void *data)
+static int __rtc_match(struct device *dev, const void *data)
 {
-	char *name = (char *)data;
+	const char *name = data;
 
 	if (strcmp(dev_name(dev), name) == 0)
 		return 1;
 	return 0;
 }
 
-struct rtc_device *rtc_class_open(char *name)
+struct rtc_device *rtc_class_open(const char *name)
 {
 	struct device *dev;
 	struct rtc_device *rtc = NULL;
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 4046514..0c397ac 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -486,11 +486,9 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	s3c_rtc_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (s3c_rtc_base == NULL) {
-		dev_err(&pdev->dev, "failed to ioremap memory region\n");
-		return -EINVAL;
-	}
+	s3c_rtc_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(s3c_rtc_base))
+		return PTR_ERR(s3c_rtc_base);
 
 	rtc_clk = devm_clk_get(&pdev->dev, "rtc");
 	if (IS_ERR(rtc_clk)) {
diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
index d5ec785..40662e9 100644
--- a/drivers/rtc/rtc-snvs.c
+++ b/drivers/rtc/rtc-snvs.c
@@ -252,9 +252,9 @@ static int snvs_rtc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	data->ioaddr = devm_request_and_ioremap(&pdev->dev, res);
-	if (!data->ioaddr)
-		return -EADDRNOTAVAIL;
+	data->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(data->ioaddr))
+		return PTR_ERR(data->ioaddr);
 
 	data->irq = platform_get_irq(pdev, 0);
 	if (data->irq < 0)
diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c
index c2121b5..a18c319 100644
--- a/drivers/rtc/rtc-spear.c
+++ b/drivers/rtc/rtc-spear.c
@@ -385,11 +385,9 @@ static int spear_rtc_probe(struct platform_device *pdev)
 		return status;
 	}
 
-	config->ioaddr = devm_request_and_ioremap(&pdev->dev, res);
-	if (!config->ioaddr) {
-		dev_err(&pdev->dev, "request-ioremap fail\n");
-		return -ENOMEM;
-	}
+	config->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(config->ioaddr))
+		return PTR_ERR(config->ioaddr);
 
 	config->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(config->clk))
diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c
index c84ea66..7c03375 100644
--- a/drivers/rtc/rtc-tegra.c
+++ b/drivers/rtc/rtc-tegra.c
@@ -327,11 +327,9 @@ static int tegra_rtc_probe(struct platform_device *pdev)
 		return -EBUSY;
 	}
 
-	info->rtc_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!info->rtc_base) {
-		dev_err(&pdev->dev, "Unable to request mem region and grab IOs for device.\n");
-		return -EBUSY;
-	}
+	info->rtc_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(info->rtc_base))
+		return PTR_ERR(info->rtc_base);
 
 	info->tegra_rtc_irq = platform_get_irq(pdev, 0);
 	if (info->tegra_rtc_irq <= 0)
diff --git a/drivers/sbus/char/Kconfig b/drivers/sbus/char/Kconfig
index 73cde85..5ba684f 100644
--- a/drivers/sbus/char/Kconfig
+++ b/drivers/sbus/char/Kconfig
@@ -21,8 +21,7 @@ config OBP_FLASH
 	  able to upgrade the OBP firmware, say Y here.
 
 config TADPOLE_TS102_UCTRL
-	tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Tadpole TS102 Microcontroller support"
 	help
 	  Say Y here to directly support the TS102 Microcontroller interface
 	  on the Tadpole Sparcbook 3.  This device handles power-management
@@ -30,8 +29,8 @@ config TADPOLE_TS102_UCTRL
 	  monitors and mice.
 
 config SUN_JSFLASH
-	tristate "JavaStation OS Flash SIMM (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && SPARC32
+	tristate "JavaStation OS Flash SIMM"
+	depends on SPARC32
 	help
 	  If you say Y here, you will be able to boot from your JavaStation's
 	  Flash memory.
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 142f632..d56b253 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -42,7 +42,7 @@ config SCSI_DMA
 
 config SCSI_TGT
 	tristate "SCSI target support"
-	depends on SCSI && EXPERIMENTAL
+	depends on SCSI
 	---help---
 	  If you want to use SCSI target mode drivers enable this option.
 	  If you choose M, the module will be called scsi_tgt.
@@ -1392,8 +1392,8 @@ config SCSI_SYM53C416
 	  module will be called sym53c416.
 
 config SCSI_DC395x
-	tristate "Tekram DC395(U/UW/F) and DC315(U) SCSI support (EXPERIMENTAL)"
-	depends on PCI && SCSI && EXPERIMENTAL
+	tristate "Tekram DC395(U/UW/F) and DC315(U) SCSI support"
+	depends on PCI && SCSI
 	---help---
 	  This driver supports PCI SCSI host adapters based on the ASIC
 	  TRM-S1040 chip, e.g Tekram DC395(U/UW/F) and DC315(U) variants.
@@ -1618,8 +1618,8 @@ config GVP11_SCSI
 	  module will be called gvp11.
 
 config SCSI_A4000T
-	tristate "A4000T NCR53c710 SCSI support (EXPERIMENTAL)"
-	depends on AMIGA && SCSI && EXPERIMENTAL
+	tristate "A4000T NCR53c710 SCSI support"
+	depends on AMIGA && SCSI
 	select SCSI_SPI_ATTRS
 	help
 	  If you have an Amiga 4000T and have SCSI devices connected to the
@@ -1629,8 +1629,8 @@ config SCSI_A4000T
 	  module will be called a4000t.
 
 config SCSI_ZORRO7XX
-	tristate "Zorro NCR53c710 SCSI support (EXPERIMENTAL)"
-	depends on ZORRO && SCSI && EXPERIMENTAL
+	tristate "Zorro NCR53c710 SCSI support"
+	depends on ZORRO && SCSI
 	select SCSI_SPI_ATTRS
 	help
 	  Support for various NCR53c710-based SCSI controllers on Zorro
@@ -1807,8 +1807,8 @@ config SCSI_BFA_FC
 	  be called bfa.
 
 config SCSI_VIRTIO
-	tristate "virtio-scsi support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && VIRTIO
+	tristate "virtio-scsi support"
+	depends on VIRTIO
 	help
           This is the virtual HBA driver for virtio.  If the kernel will
           be used in a virtual machine, say Y or M.
diff --git a/drivers/scsi/arm/Kconfig b/drivers/scsi/arm/Kconfig
index a8587f1..cfd172a 100644
--- a/drivers/scsi/arm/Kconfig
+++ b/drivers/scsi/arm/Kconfig
@@ -64,19 +64,19 @@ config SCSI_POWERTECSCSI
 	  you have one of these, say Y. If unsure, say N.
 
 comment "The following drivers are not fully supported"
-	depends on ARCH_ACORN && EXPERIMENTAL
+	depends on ARCH_ACORN
 
 config SCSI_CUMANA_1
-	tristate "CumanaSCSI I support (EXPERIMENTAL)"
-	depends on ARCH_ACORN && EXPERIMENTAL && SCSI
+	tristate "CumanaSCSI I support"
+	depends on ARCH_ACORN && SCSI
 	select SCSI_SPI_ATTRS
 	help
 	  This enables support for the Cumana SCSI I card. If you have an
 	  Acorn system with one of these, say Y. If unsure, say N.
 
 config SCSI_OAK1
-	tristate "Oak SCSI support (EXPERIMENTAL)"
-	depends on ARCH_ACORN && EXPERIMENTAL && SCSI
+	tristate "Oak SCSI support"
+	depends on ARCH_ACORN && SCSI
 	select SCSI_SPI_ATTRS
 	help
 	  This enables support for the Oak SCSI card. If you have an Acorn
diff --git a/drivers/scsi/device_handler/Kconfig b/drivers/scsi/device_handler/Kconfig
index 6707025..69abd0a 100644
--- a/drivers/scsi/device_handler/Kconfig
+++ b/drivers/scsi/device_handler/Kconfig
@@ -32,8 +32,8 @@ config SCSI_DH_EMC
 	If you have a EMC CLARiiON select y. Otherwise, say N.
 
 config SCSI_DH_ALUA
-	tristate "SPC-3 ALUA Device Handler (EXPERIMENTAL)"
-	depends on SCSI_DH && EXPERIMENTAL
+	tristate "SPC-3 ALUA Device Handler"
+	depends on SCSI_DH
 	help
 	  SCSI Device handler for generic SPC-3 Asymmetric Logical Unit
 	  Access (ALUA).
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 593085a..df0c3c7 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -468,10 +468,10 @@ void scsi_unregister(struct Scsi_Host *shost)
 }
 EXPORT_SYMBOL(scsi_unregister);
 
-static int __scsi_host_match(struct device *dev, void *data)
+static int __scsi_host_match(struct device *dev, const void *data)
 {
 	struct Scsi_Host *p;
-	unsigned short *hostnum = (unsigned short *)data;
+	const unsigned short *hostnum = data;
 
 	p = class_to_shost(dev);
 	return p->host_no == *hostnum;
diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index 4375417..0fab6b5 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -268,18 +268,11 @@ static inline bool _the_same_or_null(const u8 *a1, unsigned a1_len,
 	return 0 == memcmp(a1, a2, a1_len);
 }
 
-struct find_oud_t {
-	const struct osd_dev_info *odi;
-	struct device *dev;
-	struct osd_uld_device *oud;
-} ;
-
-int _mach_odi(struct device *dev, void *find_data)
+static int _match_odi(struct device *dev, const void *find_data)
 {
 	struct osd_uld_device *oud = container_of(dev, struct osd_uld_device,
 						  class_dev);
-	struct find_oud_t *fot = find_data;
-	const struct osd_dev_info *odi = fot->odi;
+	const struct osd_dev_info *odi = find_data;
 
 	if (_the_same_or_null(oud->odi.systemid, oud->odi.systemid_len,
 			      odi->systemid, odi->systemid_len) &&
@@ -287,7 +280,6 @@ int _mach_odi(struct device *dev, void *find_data)
 			      odi->osdname, odi->osdname_len)) {
 		OSD_DEBUG("found device sysid_len=%d osdname=%d\n",
 			  odi->systemid_len, odi->osdname_len);
-		fot->oud = oud;
 		return 1;
 	} else {
 		return 0;
@@ -301,19 +293,19 @@ int _mach_odi(struct device *dev, void *find_data)
  */
 struct osd_dev *osduld_info_lookup(const struct osd_dev_info *odi)
 {
-	struct find_oud_t find = {.odi = odi};
-
-	find.dev = class_find_device(&osd_uld_class, NULL, &find, _mach_odi);
-	if (likely(find.dev)) {
+	struct device *dev = class_find_device(&osd_uld_class, NULL, odi, _match_odi);
+	if (likely(dev)) {
 		struct osd_dev_handle *odh = kzalloc(sizeof(*odh), GFP_KERNEL);
+		struct osd_uld_device *oud = container_of(dev,
+			struct osd_uld_device, class_dev);
 
 		if (unlikely(!odh)) {
-			put_device(find.dev);
+			put_device(dev);
 			return ERR_PTR(-ENOMEM);
 		}
 
-		odh->od = find.oud->od;
-		odh->oud = find.oud;
+		odh->od = oud->od;
+		odh->oud = oud;
 
 		return &odh->od;
 	}
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 31969f2..59d427b 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -183,10 +183,10 @@ static struct attribute_group iscsi_endpoint_group = {
 
 #define ISCSI_MAX_EPID -1
 
-static int iscsi_match_epid(struct device *dev, void *data)
+static int iscsi_match_epid(struct device *dev, const void *data)
 {
 	struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev);
-	uint64_t *epid = (uint64_t *) data;
+	const uint64_t *epid = data;
 
 	return *epid == ep->id;
 }
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index e79884e9..f80eee7 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -88,7 +88,7 @@ config SPI_BFIN_SPORT
 
 config SPI_AU1550
 	tristate "Au1550/Au1200/Au1300 SPI Controller"
-	depends on MIPS_ALCHEMY && EXPERIMENTAL
+	depends on MIPS_ALCHEMY
 	select SPI_BITBANG
 	help
 	  If you say yes to this option, support will be included for the
@@ -188,7 +188,7 @@ config SPI_IMX
 
 config SPI_LM70_LLP
 	tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)"
-	depends on PARPORT && EXPERIMENTAL
+	depends on PARPORT
 	select SPI_BITBANG
 	help
 	  This driver supports the NS LM70 LLP Evaluation Board,
@@ -204,7 +204,7 @@ config SPI_MPC52xx
 
 config SPI_MPC52xx_PSC
 	tristate "Freescale MPC52xx PSC SPI controller"
-	depends on PPC_MPC52xx && EXPERIMENTAL
+	depends on PPC_MPC52xx
 	help
 	  This enables using the Freescale MPC52xx Programmable Serial
 	  Controller in master SPI mode.
@@ -273,8 +273,8 @@ config SPI_OMAP_100K
 	  OMAP SPI 100K master controller for omap7xx boards.
 
 config SPI_ORION
-	tristate "Orion SPI master (EXPERIMENTAL)"
-	depends on PLAT_ORION && EXPERIMENTAL
+	tristate "Orion SPI master"
+	depends on PLAT_ORION
 	help
 	  This enables using the SPI master controller on the Orion chips.
 
@@ -328,7 +328,7 @@ config SPI_RSPI
 
 config SPI_S3C24XX
 	tristate "Samsung S3C24XX series SPI"
-	depends on ARCH_S3C24XX && EXPERIMENTAL
+	depends on ARCH_S3C24XX
 	select SPI_BITBANG
 	help
 	  SPI driver for Samsung S3C24XX series ARM SoCs
@@ -443,7 +443,7 @@ config SPI_XCOMM
 
 config SPI_XILINX
 	tristate "Xilinx SPI controller common module"
-	depends on HAS_IOMEM && EXPERIMENTAL
+	depends on HAS_IOMEM
 	select SPI_BITBANG
 	help
 	  This exposes the SPI controller IP from the Xilinx EDK.
@@ -455,7 +455,7 @@ config SPI_XILINX
 
 config SPI_NUC900
 	tristate "Nuvoton NUC900 series SPI"
-	depends on ARCH_W90X900 && EXPERIMENTAL
+	depends on ARCH_W90X900
 	select SPI_BITBANG
 	help
 	  SPI driver for Nuvoton NUC900 series ARM SoCs
@@ -489,7 +489,6 @@ comment "SPI Protocol Masters"
 
 config SPI_SPIDEV
 	tristate "User mode SPI device driver support"
-	depends on EXPERIMENTAL
 	help
 	  This supports user mode SPI protocol drivers.
 
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index aecbff1..d7bac60 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -1085,10 +1085,9 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
 
 	espi->sspdr_phys = res->start + SSPDR;
 
-	espi->regs_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!espi->regs_base) {
-		dev_err(&pdev->dev, "failed to map resources\n");
-		error = -ENODEV;
+	espi->regs_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(espi->regs_base)) {
+		error = PTR_ERR(espi->regs_base);
 		goto fail_put_clock;
 	}
 
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index e3d8b31..22a0af0 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -541,9 +541,9 @@ static int mxs_spi_probe(struct platform_device *pdev)
 	if (!iores || irq_err < 0 || irq_dma < 0)
 		return -EINVAL;
 
-	base = devm_request_and_ioremap(&pdev->dev, iores);
-	if (!base)
-		return -EADDRNOTAVAIL;
+	base = devm_ioremap_resource(&pdev->dev, iores);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
 	if (IS_ERR(pinctrl))
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 69945b0..893c3d7 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1222,10 +1222,9 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
 	r->end += regs_offset;
 	mcspi->phys = r->start;
 
-	mcspi->base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!mcspi->base) {
-		dev_dbg(&pdev->dev, "can't ioremap MCSPI\n");
-		status = -ENOMEM;
+	mcspi->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(mcspi->base)) {
+		status = PTR_ERR(mcspi->base);
 		goto free_master;
 	}
 
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 7cfbe9d..e862ab8 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1241,10 +1241,9 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 	/* the spi->mode bits understood by this driver: */
 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
 
-	sdd->regs = devm_request_and_ioremap(&pdev->dev, mem_res);
-	if (sdd->regs == NULL) {
-		dev_err(&pdev->dev, "Unable to remap IO\n");
-		ret = -ENXIO;
+	sdd->regs = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(sdd->regs)) {
+		ret = PTR_ERR(sdd->regs);
 		goto err0;
 	}
 
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index 6a5626d..f59d417 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -534,10 +534,9 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
 		}
 	}
 
-	sspi->base = devm_request_and_ioremap(&pdev->dev, mem_res);
-	if (!sspi->base) {
-		dev_err(&pdev->dev, "IO remap failed!\n");
-		ret = -ENOMEM;
+	sspi->base = devm_ioremap_resource(&pdev->dev, mem_res);
+	if (IS_ERR(sspi->base)) {
+		ret = PTR_ERR(sspi->base);
 		goto free_master;
 	}
 
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 9a42c15..8a61b27 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -516,11 +516,9 @@ static int tegra_sflash_probe(struct platform_device *pdev)
 		ret = -ENODEV;
 		goto exit_free_master;
 	}
-	tsd->base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!tsd->base) {
-		dev_err(&pdev->dev,
-			"Cannot request memregion/iomap dma address\n");
-		ret = -EADDRNOTAVAIL;
+	tsd->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(tsd->base)) {
+		ret = PTR_ERR(tsd->base);
 		goto exit_free_master;
 	}
 
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 8d51db8..8458c4b 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1169,11 +1169,9 @@ static int tegra_slink_probe(struct platform_device *pdev)
 		goto exit_free_master;
 	}
 	tspi->phys = r->start;
-	tspi->base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!tspi->base) {
-		dev_err(&pdev->dev,
-			"Cannot request memregion/iomap dma address\n");
-		ret = -EADDRNOTAVAIL;
+	tspi->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(tspi->base)) {
+		ret = PTR_ERR(tspi->base);
 		goto exit_free_master;
 	}
 
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 6f193b0..f996c600 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1251,10 +1251,10 @@ int spi_master_resume(struct spi_master *master)
 }
 EXPORT_SYMBOL_GPL(spi_master_resume);
 
-static int __spi_master_match(struct device *dev, void *data)
+static int __spi_master_match(struct device *dev, const void *data)
 {
 	struct spi_master *m;
-	u16 *bus_num = data;
+	const u16 *bus_num = data;
 
 	m = container_of(dev, struct spi_master, dev);
 	return m->bus_num == *bus_num;
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index c5ceb9d..3d562da 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -15,6 +15,7 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
@@ -487,9 +488,9 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 	/* Grab the memory area */
 	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	lradc->dev = &pdev->dev;
-	lradc->base = devm_request_and_ioremap(dev, iores);
-	if (!lradc->base) {
-		ret = -EADDRNOTAVAIL;
+	lradc->base = devm_ioremap_resource(dev, iores);
+	if (IS_ERR(lradc->base)) {
+		ret = PTR_ERR(lradc->base);
 		goto err_addr;
 	}
 
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 2830946..492e0b6 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -759,11 +759,9 @@ static int tegra_nvec_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!base) {
-		dev_err(&pdev->dev, "Can't ioremap I2C region\n");
-		return -ENOMEM;
-	}
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {
diff --git a/drivers/staging/omap-thermal/omap-bandgap.c b/drivers/staging/omap-thermal/omap-bandgap.c
index 8346e345..21fd91b 100644
--- a/drivers/staging/omap-thermal/omap-bandgap.c
+++ b/drivers/staging/omap-thermal/omap-bandgap.c
@@ -820,15 +820,12 @@ static struct omap_bandgap *omap_bandgap_build(struct platform_device *pdev)
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
 		if (!res)
 			break;
-		chunk = devm_request_and_ioremap(&pdev->dev, res);
+		chunk = devm_ioremap_resource(&pdev->dev, res);
 		if (i == 0)
 			bg_ptr->base = chunk;
-		if (!chunk) {
-			dev_err(&pdev->dev,
-				"failed to request the IO (%d:%pR).\n",
-				i, res);
-			return ERR_PTR(-EADDRNOTAVAIL);
-		}
+		if (IS_ERR(chunk))
+			return ERR_CAST(chunk);
+		
 		i++;
 	} while (res);
 
diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/exynos_thermal.c
index 224751e..bada130 100644
--- a/drivers/thermal/exynos_thermal.c
+++ b/drivers/thermal/exynos_thermal.c
@@ -866,11 +866,9 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	data->base = devm_request_and_ioremap(&pdev->dev, data->mem);
-	if (!data->base) {
-		dev_err(&pdev->dev, "Failed to ioremap memory\n");
-		return -ENODEV;
-	}
+	data->base = devm_ioremap_resource(&pdev->dev, data->mem);
+	if (IS_ERR(data->base))
+		return PTR_ERR(data->base);
 
 	ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq,
 		IRQF_TRIGGER_RISING, "exynos-tmu", data);
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index 418b495..e869eab 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -15,6 +15,7 @@
 #define SUPPORT_SYSRQ
 #endif
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/console.h>
@@ -875,10 +876,9 @@ static int sccnxp_probe(struct platform_device *pdev)
 		goto err_out;
 	}
 
-	membase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!membase) {
-		dev_err(&pdev->dev, "Failed to ioremap\n");
-		ret = -EIO;
+	membase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(membase)) {
+		ret = PTR_ERR(membase);
 		goto err_out;
 	}
 
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index da9fde8..6b20fd6 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2906,9 +2906,9 @@ void do_SAK(struct tty_struct *tty)
 
 EXPORT_SYMBOL(do_SAK);
 
-static int dev_match_devt(struct device *dev, void *data)
+static int dev_match_devt(struct device *dev, const void *data)
 {
-	dev_t *devt = data;
+	const dev_t *devt = data;
 	return dev->devt == *devt;
 }
 
diff --git a/drivers/usb/chipidea/usbmisc_imx6q.c b/drivers/usb/chipidea/usbmisc_imx6q.c
index 845efe2..a1bce39 100644
--- a/drivers/usb/chipidea/usbmisc_imx6q.c
+++ b/drivers/usb/chipidea/usbmisc_imx6q.c
@@ -98,9 +98,9 @@ static int usbmisc_imx6q_probe(struct platform_device *pdev)
 	spin_lock_init(&data->lock);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	data->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!data->base)
-		return -EADDRNOTAVAIL;
+	data->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(data->base))
+		return PTR_ERR(data->base);
 
 	data->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(data->clk)) {
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index f4a21f6..0143ffa4 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1982,17 +1982,7 @@ static struct platform_driver at91_udc_driver = {
 	},
 };
 
-static int __init udc_init_module(void)
-{
-	return platform_driver_probe(&at91_udc_driver, at91udc_probe);
-}
-module_init(udc_init_module);
-
-static void __exit udc_exit_module(void)
-{
-	platform_driver_unregister(&at91_udc_driver);
-}
-module_exit(udc_exit_module);
+module_platform_driver_probe(at91_udc_driver, at91udc_probe);
 
 MODULE_DESCRIPTION("AT91 udc driver");
 MODULE_AUTHOR("Thomas Rathbone, David Brownell");
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index a7aed84..bc19496 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -2066,17 +2066,7 @@ static struct platform_driver udc_driver = {
 	},
 };
 
-static int __init udc_init(void)
-{
-	return platform_driver_probe(&udc_driver, usba_udc_probe);
-}
-module_init(udc_init);
-
-static void __exit udc_exit(void)
-{
-	platform_driver_unregister(&udc_driver);
-}
-module_exit(udc_exit);
+module_platform_driver_probe(udc_driver, usba_udc_probe);
 
 MODULE_DESCRIPTION("Atmel USBA UDC driver");
 MODULE_AUTHOR("Haavard Skinnemoen (Atmel)");
diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c
index 47a4993..8cc8253 100644
--- a/drivers/usb/gadget/bcm63xx_udc.c
+++ b/drivers/usb/gadget/bcm63xx_udc.c
@@ -2351,19 +2351,20 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
 		dev_err(dev, "error finding USBD resource\n");
 		return -ENXIO;
 	}
-	udc->usbd_regs = devm_request_and_ioremap(dev, res);
+
+	udc->usbd_regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(udc->usbd_regs))
+		return PTR_ERR(udc->usbd_regs);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 	if (!res) {
 		dev_err(dev, "error finding IUDMA resource\n");
 		return -ENXIO;
 	}
-	udc->iudma_regs = devm_request_and_ioremap(dev, res);
 
-	if (!udc->usbd_regs || !udc->iudma_regs) {
-		dev_err(dev, "error requesting resources\n");
-		return -ENXIO;
-	}
+	udc->iudma_regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(udc->iudma_regs))
+		return PTR_ERR(udc->iudma_regs);
 
 	spin_lock_init(&udc->lock);
 	INIT_WORK(&udc->ep0_wq, bcm63xx_ep0_process);
diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index 72cd5e6..fc7cb09 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -1547,15 +1547,4 @@ static struct platform_driver fusb300_driver = {
 	},
 };
 
-static int __init fusb300_udc_init(void)
-{
-	return platform_driver_probe(&fusb300_driver, fusb300_probe);
-}
-
-module_init(fusb300_udc_init);
-
-static void __exit fusb300_udc_cleanup(void)
-{
-	platform_driver_unregister(&fusb300_driver);
-}
-module_exit(fusb300_udc_cleanup);
+module_platform_driver_probe(fusb300_driver, fusb300_probe);
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index a0eb857..8efd7555 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -1556,17 +1556,7 @@ static struct platform_driver udc_driver = {
 	.resume		= imx_udc_resume,
 };
 
-static int __init udc_init(void)
-{
-	return platform_driver_probe(&udc_driver, imx_udc_probe);
-}
-module_init(udc_init);
-
-static void __exit udc_exit(void)
-{
-	platform_driver_unregister(&udc_driver);
-}
-module_exit(udc_exit);
+module_platform_driver_probe(udc_driver, imx_udc_probe);
 
 MODULE_DESCRIPTION("IMX USB Device Controller driver");
 MODULE_AUTHOR("Darius Augulis <augulis.darius@gmail.com>");
diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c
index dd1c9b1..aa04089 100644
--- a/drivers/usb/gadget/lpc32xx_udc.c
+++ b/drivers/usb/gadget/lpc32xx_udc.c
@@ -3458,17 +3458,7 @@ static struct platform_driver lpc32xx_udc_driver = {
 	},
 };
 
-static int __init udc_init_module(void)
-{
-	return platform_driver_probe(&lpc32xx_udc_driver, lpc32xx_udc_probe);
-}
-module_init(udc_init_module);
-
-static void __exit udc_exit_module(void)
-{
-	platform_driver_unregister(&lpc32xx_udc_driver);
-}
-module_exit(udc_exit_module);
+module_platform_driver_probe(lpc32xx_udc_driver, lpc32xx_udc_probe);
 
 MODULE_DESCRIPTION("LPC32XX udc driver");
 MODULE_AUTHOR("Kevin Wells <kevin.wells@nxp.com>");
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index b6401f1..dfce0cf 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -1753,14 +1753,4 @@ static struct platform_driver m66592_driver = {
 	},
 };
 
-static int __init m66592_udc_init(void)
-{
-	return platform_driver_probe(&m66592_driver, m66592_probe);
-}
-module_init(m66592_udc_init);
-
-static void __exit m66592_udc_cleanup(void)
-{
-	platform_driver_unregister(&m66592_driver);
-}
-module_exit(m66592_udc_cleanup);
+module_platform_driver_probe(m66592_driver, m66592_probe);
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index d4ca9f1..d52e869 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -2100,6 +2100,8 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev)
 	int retval, irq;
 	u32 chiprev;
 
+	pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);
+
 	/* insist on Intel/ARM/XScale */
 	asm("mrc%? p15, 0, %0, c0, c0" : "=r" (chiprev));
 	if ((chiprev & CP15R0_VENDOR_MASK) != CP15R0_XSCALE_VALUE) {
@@ -2346,18 +2348,7 @@ static struct platform_driver udc_driver = {
 	},
 };
 
-static int __init udc_init(void)
-{
-	pr_info("%s: version %s\n", driver_name, DRIVER_VERSION);
-	return platform_driver_probe(&udc_driver, pxa25x_udc_probe);
-}
-module_init(udc_init);
-
-static void __exit udc_exit(void)
-{
-	platform_driver_unregister(&udc_driver);
-}
-module_exit(udc_exit);
+module_platform_driver_probe(udc_driver, pxa25x_udc_probe);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_AUTHOR("Frank Becker, Robert Schwebel, David Brownell");
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index 5a80751..9a9fadd 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -2031,21 +2031,10 @@ static struct platform_driver r8a66597_driver = {
 		.name =	(char *) udc_name,
 	},
 };
-MODULE_ALIAS("platform:r8a66597_udc");
-
-static int __init r8a66597_udc_init(void)
-{
-	return platform_driver_probe(&r8a66597_driver, r8a66597_probe);
-}
-module_init(r8a66597_udc_init);
 
-static void __exit r8a66597_udc_cleanup(void)
-{
-	platform_driver_unregister(&r8a66597_driver);
-}
-module_exit(r8a66597_udc_cleanup);
+module_platform_driver_probe(r8a66597_driver, r8a66597_probe);
 
 MODULE_DESCRIPTION("R8A66597 USB gadget driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Yoshihiro Shimoda");
-
+MODULE_ALIAS("platform:r8a66597_udc");
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 439c3f9..de80fa6 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -3525,10 +3525,9 @@ static int s3c_hsotg_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	hsotg->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hsotg->regs) {
-		dev_err(dev, "cannot map registers\n");
-		ret = -ENXIO;
+	hsotg->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hsotg->regs)) {
+		ret = PTR_ERR(hsotg->regs);
 		goto err_clk;
 	}
 
diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index 52379b1..94ca33b 100644
--- a/drivers/usb/gadget/s3c-hsudc.c
+++ b/drivers/usb/gadget/s3c-hsudc.c
@@ -1295,10 +1295,9 @@ static int s3c_hsudc_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	hsudc->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hsudc->regs) {
-		dev_err(dev, "error mapping device register area\n");
-		ret = -EBUSY;
+	hsudc->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hsudc->regs)) {
+		ret = PTR_ERR(hsudc->regs);
 		goto err_res;
 	}
 
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 27639487..f3beac4 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -143,10 +143,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (hcd->regs == NULL) {
-		dev_dbg(&pdev->dev, "error mapping memory\n");
-		retval = -EFAULT;
+	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hcd->regs)) {
+		retval = PTR_ERR(hcd->regs);
 		goto fail_request_resource;
 	}
 
diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c
index 1fc8929..5d75de9 100644
--- a/drivers/usb/host/ehci-grlib.c
+++ b/drivers/usb/host/ehci-grlib.c
@@ -25,7 +25,7 @@
  * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-
+#include <linux/err.h>
 #include <linux/signal.h>
 
 #include <linux/of_irq.h>
@@ -118,10 +118,9 @@ static int ehci_hcd_grlib_probe(struct platform_device *op)
 		goto err_irq;
 	}
 
-	hcd->regs = devm_request_and_ioremap(&op->dev, &res);
-	if (!hcd->regs) {
-		pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
-		rv = -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&op->dev, &res);
+	if (IS_ERR(hcd->regs)) {
+		rv = PTR_ERR(hcd->regs);
 		goto err_ioremap;
 	}
 
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index dedb80b..e2004de 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -85,10 +85,9 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hcd->regs) {
-		dev_err(dev, "error mapping memory\n");
-		ret = -EFAULT;
+	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hcd->regs)) {
+		ret = PTR_ERR(hcd->regs);
 		goto err_alloc;
 	}
 
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 58fa0c9..ca75063 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -18,6 +18,7 @@
  *
  * Licensed under the GNU/GPL. See COPYING for details.
  */
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/hrtimer.h>
 #include <linux/io.h>
@@ -104,9 +105,9 @@ static int ehci_platform_probe(struct platform_device *dev)
 	hcd->rsrc_start = res_mem->start;
 	hcd->rsrc_len = resource_size(res_mem);
 
-	hcd->regs = devm_request_and_ioremap(&dev->dev, res_mem);
-	if (!hcd->regs) {
-		err = -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+	if (IS_ERR(hcd->regs)) {
+		err = PTR_ERR(hcd->regs);
 		goto err_put_hcd;
 	}
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 45aceef..56dc732 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -12,6 +12,7 @@
  * This file is licenced under the GPL.
  */
 
+#include <linux/err.h>
 #include <linux/signal.h>
 
 #include <linux/of.h>
@@ -121,10 +122,9 @@ static int ehci_hcd_ppc_of_probe(struct platform_device *op)
 		goto err_irq;
 	}
 
-	hcd->regs = devm_request_and_ioremap(&op->dev, &res);
-	if (!hcd->regs) {
-		pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
-		rv = -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&op->dev, &res);
+	if (IS_ERR(hcd->regs)) {
+		rv = PTR_ERR(hcd->regs);
 		goto err_ioremap;
 	}
 
diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c
index efad02d..f55477c 100644
--- a/drivers/usb/host/ehci-sead3.c
+++ b/drivers/usb/host/ehci-sead3.c
@@ -19,6 +19,7 @@
  * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/err.h>
 #include <linux/platform_device.h>
 
 static int ehci_sead3_setup(struct usb_hcd *hcd)
@@ -112,10 +113,9 @@ static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hcd->regs) {
-		pr_debug("ioremap failed");
-		ret = -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hcd->regs)) {
+		ret = PTR_ERR(hcd->regs);
 		goto err1;
 	}
 
diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c
index 0c90a24..3565a30 100644
--- a/drivers/usb/host/ehci-sh.c
+++ b/drivers/usb/host/ehci-sh.c
@@ -118,10 +118,9 @@ static int ehci_hcd_sh_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (hcd->regs == NULL) {
-		dev_dbg(&pdev->dev, "error mapping memory\n");
-		ret = -ENXIO;
+	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hcd->regs)) {
+		ret = PTR_ERR(hcd->regs);
 		goto fail_request_resource;
 	}
 
diff --git a/drivers/usb/host/ehci-vt8500.c b/drivers/usb/host/ehci-vt8500.c
index 11695d5..7ecf709 100644
--- a/drivers/usb/host/ehci-vt8500.c
+++ b/drivers/usb/host/ehci-vt8500.c
@@ -16,6 +16,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 
@@ -96,10 +97,9 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev)
 	hcd->rsrc_start = res->start;
 	hcd->rsrc_len = resource_size(res);
 
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hcd->regs) {
-		pr_debug("ioremap failed");
-		ret = -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hcd->regs)) {
+		ret = PTR_ERR(hcd->regs);
 		goto err1;
 	}
 
diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c
index 4f285e8..d845e3b 100644
--- a/drivers/usb/host/ehci-xilinx-of.c
+++ b/drivers/usb/host/ehci-xilinx-of.c
@@ -25,6 +25,7 @@
  *
  */
 
+#include <linux/err.h>
 #include <linux/signal.h>
 
 #include <linux/of.h>
@@ -159,10 +160,9 @@ static int ehci_hcd_xilinx_of_probe(struct platform_device *op)
 		goto err_irq;
 	}
 
-	hcd->regs = devm_request_and_ioremap(&op->dev, &res);
-	if (!hcd->regs) {
-		pr_err("%s: devm_request_and_ioremap failed\n", __FILE__);
-		rv = -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&op->dev, &res);
+	if (IS_ERR(hcd->regs)) {
+		rv = PTR_ERR(hcd->regs);
 		goto err_irq;
 	}
 
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 2344040..f4988fb 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -306,10 +306,9 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 		goto out8;
 	}
 
-	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hcd->regs) {
-		dev_err(&pdev->dev, "Failed to devm_request_and_ioremap\n");
-		ret =  -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hcd->regs)) {
+		ret = PTR_ERR(hcd->regs);
 		goto out8;
 	}
 	hcd->rsrc_start = res->start;
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 084503b..c3e7287 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -13,6 +13,7 @@
  *
  * Licensed under the GNU/GPL. See COPYING for details.
  */
+#include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/usb/ohci_pdriver.h>
 
@@ -127,9 +128,9 @@ static int ohci_platform_probe(struct platform_device *dev)
 	hcd->rsrc_start = res_mem->start;
 	hcd->rsrc_len = resource_size(res_mem);
 
-	hcd->regs = devm_request_and_ioremap(&dev->dev, res_mem);
-	if (!hcd->regs) {
-		err = -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+	if (IS_ERR(hcd->regs)) {
+		err = PTR_ERR(hcd->regs);
 		goto err_put_hcd;
 	}
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index ad0f552..e125770 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -351,10 +351,9 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver,
 	hcd->rsrc_start = dev->resource[0].start;
 	hcd->rsrc_len	= resource_size(&dev->resource[0]);
 
-	hcd->regs = devm_request_and_ioremap(&dev->dev, &dev->resource[0]);
-	if (!hcd->regs) {
-		dev_err(&dev->dev, "devm_request_and_ioremap failed\n");
-		retval = -ENOMEM;
+	hcd->regs = devm_ioremap_resource(&dev->dev, &dev->resource[0]);
+	if (IS_ERR(hcd->regs)) {
+		retval = PTR_ERR(hcd->regs);
 		goto err_put;
 	}
 
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index f7d764d..99f470d 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -500,10 +500,9 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, u8 id)
 	resources[0].end = resources[0].start + SZ_4 - 1;
 	resources[0].flags = IORESOURCE_MEM;
 
-	glue->usb_ctrl[id] = devm_request_and_ioremap(&pdev->dev, resources);
-	if (glue->usb_ctrl[id] == NULL) {
-		dev_err(dev, "Failed to obtain usb_ctrl%d memory\n", id);
-		ret = -ENODEV;
+	glue->usb_ctrl[id] = devm_ioremap_resource(&pdev->dev, resources);
+	if (IS_ERR(glue->usb_ctrl[id])) {
+		ret = PTR_ERR(glue->usb_ctrl[id]);
 		goto err0;
 	}
 
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index da00af4..acd5f9d 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -523,9 +523,7 @@ static int omap2430_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 
-	glue->control_otghs = devm_request_and_ioremap(&pdev->dev, res);
-	if (glue->control_otghs == NULL)
-		dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+	glue->control_otghs = devm_ioremap_resource(&pdev->dev, res);
 
 	if (np) {
 		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/otg/gpio_vbus.c
index a67ffe2..a7d4ac5 100644
--- a/drivers/usb/otg/gpio_vbus.c
+++ b/drivers/usb/otg/gpio_vbus.c
@@ -409,17 +409,7 @@ static struct platform_driver gpio_vbus_driver = {
 	.remove  = __exit_p(gpio_vbus_remove),
 };
 
-static int __init gpio_vbus_init(void)
-{
-	return platform_driver_probe(&gpio_vbus_driver, gpio_vbus_probe);
-}
-module_init(gpio_vbus_init);
-
-static void __exit gpio_vbus_exit(void)
-{
-	platform_driver_unregister(&gpio_vbus_driver);
-}
-module_exit(gpio_vbus_exit);
+module_platform_driver_probe(gpio_vbus_driver, gpio_vbus_probe);
 
 MODULE_DESCRIPTION("simple GPIO controlled OTG transceiver driver");
 MODULE_AUTHOR("Philipp Zabel");
diff --git a/drivers/usb/otg/msm_otg.c b/drivers/usb/otg/msm_otg.c
index 3b9f0d9..749fbf4 100644
--- a/drivers/usb/otg/msm_otg.c
+++ b/drivers/usb/otg/msm_otg.c
@@ -1756,18 +1756,7 @@ static struct platform_driver msm_otg_driver = {
 	},
 };
 
-static int __init msm_otg_init(void)
-{
-	return platform_driver_probe(&msm_otg_driver, msm_otg_probe);
-}
-
-static void __exit msm_otg_exit(void)
-{
-	platform_driver_unregister(&msm_otg_driver);
-}
-
-module_init(msm_otg_init);
-module_exit(msm_otg_exit);
+module_platform_driver_probe(msm_otg_driver, msm_otg_probe);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("MSM USB transceiver driver");
diff --git a/drivers/usb/otg/mxs-phy.c b/drivers/usb/otg/mxs-phy.c
index 7630272..60df28a 100644
--- a/drivers/usb/otg/mxs-phy.c
+++ b/drivers/usb/otg/mxs-phy.c
@@ -115,9 +115,9 @@ static int mxs_phy_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!base)
-		return -EBUSY;
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(clk)) {
diff --git a/drivers/usb/phy/mv_u3d_phy.c b/drivers/usb/phy/mv_u3d_phy.c
index eaddbe3..9d85991 100644
--- a/drivers/usb/phy/mv_u3d_phy.c
+++ b/drivers/usb/phy/mv_u3d_phy.c
@@ -283,11 +283,9 @@ static int mv_u3d_phy_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	phy_base = devm_request_and_ioremap(dev, res);
-	if (!phy_base) {
-		dev_err(dev, "%s: register mapping failed\n", __func__);
-		return -ENXIO;
-	}
+	phy_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(phy_base))
+		return PTR_ERR(phy_base);
 
 	mv_u3d_phy = devm_kzalloc(dev, sizeof(*mv_u3d_phy), GFP_KERNEL);
 	if (!mv_u3d_phy)
diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/omap-usb2.c
index 26ae8f4..2fdb8ed 100644
--- a/drivers/usb/phy/omap-usb2.c
+++ b/drivers/usb/phy/omap-usb2.c
@@ -168,11 +168,9 @@ static int omap_usb2_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 
-	phy->control_dev = devm_request_and_ioremap(&pdev->dev, res);
-	if (phy->control_dev == NULL) {
-		dev_err(&pdev->dev, "Failed to obtain io memory\n");
-		return -ENXIO;
-	}
+	phy->control_dev = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(phy->control_dev))
+		return PTR_ERR(phy->control_dev);
 
 	phy->is_suspended	= 1;
 	omap_usb_phy_power(phy, 0);
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 38bce04..cfd2050 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -14,6 +14,7 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
+#include <linux/err.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
@@ -443,11 +444,9 @@ static int usbhs_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	priv->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!priv->base) {
-		dev_err(&pdev->dev, "ioremap error.\n");
-		return -ENOMEM;
-	}
+	priv->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
 
 	/*
 	 * care platform info
diff --git a/drivers/uwb/lc-rc.c b/drivers/uwb/lc-rc.c
index 4d688c7..3eca6ce 100644
--- a/drivers/uwb/lc-rc.c
+++ b/drivers/uwb/lc-rc.c
@@ -40,9 +40,9 @@
 
 #include "uwb-internal.h"
 
-static int uwb_rc_index_match(struct device *dev, void *data)
+static int uwb_rc_index_match(struct device *dev, const void *data)
 {
-	int *index = data;
+	const int *index = data;
 	struct uwb_rc *rc = dev_get_drvdata(dev);
 
 	if (rc->index == *index)
@@ -334,9 +334,9 @@ void uwb_rc_rm(struct uwb_rc *rc)
 }
 EXPORT_SYMBOL_GPL(uwb_rc_rm);
 
-static int find_rc_try_get(struct device *dev, void *data)
+static int find_rc_try_get(struct device *dev, const void *data)
 {
-	struct uwb_rc *target_rc = data;
+	const struct uwb_rc *target_rc = data;
 	struct uwb_rc *rc = dev_get_drvdata(dev);
 
 	if (rc == NULL) {
@@ -386,9 +386,9 @@ static inline struct uwb_rc *uwb_rc_get(struct uwb_rc *rc)
 	return rc;
 }
 
-static int find_rc_grandpa(struct device *dev, void *data)
+static int find_rc_grandpa(struct device *dev, const void *data)
 {
-	struct device *grandpa_dev = data;
+	const struct device *grandpa_dev = data;
 	struct uwb_rc *rc = dev_get_drvdata(dev);
 
 	if (rc->uwb_dev.dev.parent->parent == grandpa_dev) {
@@ -419,7 +419,7 @@ struct uwb_rc *uwb_rc_get_by_grandpa(const struct device *grandpa_dev)
 	struct device *dev;
 	struct uwb_rc *rc = NULL;
 
-	dev = class_find_device(&uwb_rc_class, NULL, (void *)grandpa_dev,
+	dev = class_find_device(&uwb_rc_class, NULL, grandpa_dev,
 				find_rc_grandpa);
 	if (dev)
 		rc = dev_get_drvdata(dev);
@@ -432,9 +432,9 @@ EXPORT_SYMBOL_GPL(uwb_rc_get_by_grandpa);
  *
  * @returns the pointer to the radio controller, properly referenced
  */
-static int find_rc_dev(struct device *dev, void *data)
+static int find_rc_dev(struct device *dev, const void *data)
 {
-	struct uwb_dev_addr *addr = data;
+	const struct uwb_dev_addr *addr = data;
 	struct uwb_rc *rc = dev_get_drvdata(dev);
 
 	if (rc == NULL) {
@@ -453,8 +453,7 @@ struct uwb_rc *uwb_rc_get_by_dev(const struct uwb_dev_addr *addr)
 	struct device *dev;
 	struct uwb_rc *rc = NULL;
 
-	dev = class_find_device(&uwb_rc_class, NULL, (void *)addr,
-				find_rc_dev);
+	dev = class_find_device(&uwb_rc_class, NULL, addr, find_rc_dev);
 	if (dev)
 		rc = dev_get_drvdata(dev);
 
diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
index 202bba6..bf24317 100644
--- a/drivers/vhost/Kconfig
+++ b/drivers/vhost/Kconfig
@@ -1,6 +1,6 @@
 config VHOST_NET
-	tristate "Host kernel accelerator for virtio net (EXPERIMENTAL)"
-	depends on NET && EVENTFD && (TUN || !TUN) && (MACVTAP || !MACVTAP) && EXPERIMENTAL
+	tristate "Host kernel accelerator for virtio net"
+	depends on NET && EVENTFD && (TUN || !TUN) && (MACVTAP || !MACVTAP)
 	---help---
 	  This kernel module can be loaded in host kernel to accelerate
 	  guest networking with virtio_net. Not to be confused with virtio_net
diff --git a/drivers/vhost/Kconfig.tcm b/drivers/vhost/Kconfig.tcm
index a9c6f76..7e3aa28 100644
--- a/drivers/vhost/Kconfig.tcm
+++ b/drivers/vhost/Kconfig.tcm
@@ -1,6 +1,6 @@
 config TCM_VHOST
-	tristate "TCM_VHOST fabric module (EXPERIMENTAL)"
-	depends on TARGET_CORE && EVENTFD && EXPERIMENTAL && m
+	tristate "TCM_VHOST fabric module"
+	depends on TARGET_CORE && EVENTFD && m
 	default n
 	---help---
 	Say M here to enable the TCM_VHOST fabric module for use with virtio-scsi guests
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index e7068c5..e4e1765 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1112,8 +1112,8 @@ config FB_RIVA_BACKLIGHT
 	  Say Y here if you want to control the backlight of your display.
 
 config FB_I740
-	tristate "Intel740 support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && FB && PCI
+	tristate "Intel740 support"
+	depends on FB && PCI
 	select FB_MODE_HELPERS
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
@@ -1124,8 +1124,8 @@ config FB_I740
 	  This driver supports graphics cards based on Intel740 chip.
 
 config FB_I810
-	tristate "Intel 810/815 support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && FB && PCI && X86_32 && AGP_INTEL
+	tristate "Intel 810/815 support"
+	depends on FB && PCI && X86_32 && AGP_INTEL
 	select FB_MODE_HELPERS
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
@@ -1187,8 +1187,8 @@ config FB_CARILLO_RANCH
 	  This driver supports the LE80578 (Carillo Ranch) board
 
 config FB_INTEL
-	tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G/945GM/965G/965GM support (EXPERIMENTAL)"
-	depends on EXPERIMENTAL && FB && PCI && X86 && AGP_INTEL && EXPERT
+	tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G/945GM/965G/965GM support"
+	depends on FB && PCI && X86 && AGP_INTEL && EXPERT
 	select FB_MODE_HELPERS
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
@@ -1432,7 +1432,7 @@ config FB_ATY_CT
 	  is at <http://support.ati.com/products/pc/mach64/mach64.html>.
 
 config FB_ATY_GENERIC_LCD
-	bool "Mach64 generic LCD support (EXPERIMENTAL)"
+	bool "Mach64 generic LCD support"
 	depends on FB_ATY_CT
 	help
 	  Say Y if you have a laptop with an ATI Rage LT PRO, Rage Mobility,
@@ -1479,7 +1479,7 @@ config FB_S3_DDC
 
 config FB_SAVAGE
 	tristate "S3 Savage support"
-	depends on FB && PCI && EXPERIMENTAL
+	depends on FB && PCI
 	select FB_MODE_HELPERS
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
@@ -1633,15 +1633,15 @@ config FB_3DFX
 	  module will be called tdfxfb.
 
 config FB_3DFX_ACCEL
-	bool "3Dfx Acceleration functions (EXPERIMENTAL)"
-	depends on FB_3DFX && EXPERIMENTAL
+	bool "3Dfx Acceleration functions"
+	depends on FB_3DFX
 	---help---
 	This will compile the 3Dfx Banshee/Voodoo3/VSA-100 frame buffer
 	device driver with acceleration functions.
 
 config FB_3DFX_I2C
 	bool "Enable DDC/I2C support"
-	depends on FB_3DFX && EXPERIMENTAL
+	depends on FB_3DFX
 	select FB_DDC
 	default y
 	help
@@ -1714,8 +1714,8 @@ config FB_ARK
 	  and ICS 5342 RAMDAC.
 
 config FB_PM3
-	tristate "Permedia3 support (EXPERIMENTAL)"
-	depends on FB && PCI && EXPERIMENTAL
+	tristate "Permedia3 support"
+	depends on FB && PCI
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index 345f666..c74e7aa 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -371,7 +371,7 @@ void backlight_device_unregister(struct backlight_device *bd)
 EXPORT_SYMBOL(backlight_device_unregister);
 
 #ifdef CONFIG_OF
-static int of_parent_match(struct device *dev, void *data)
+static int of_parent_match(struct device *dev, const void *data)
 {
 	return dev->parent && dev->parent->of_node == data;
 }
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index e2c96d0..bc922c4 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -46,7 +46,7 @@ config VGACON_SOFT_SCROLLBACK_SIZE
 
 config MDA_CONSOLE
 	depends on !M68K && !PARISC && ISA
-	tristate "MDA text console (dual-headed) (EXPERIMENTAL)"
+	tristate "MDA text console (dual-headed)"
 	---help---
 	  Say Y here if you have an old MDA or monochrome Hercules graphics
 	  adapter in your system acting as a second head ( = video card). You
diff --git a/drivers/video/exynos/exynos_dp_core.c b/drivers/video/exynos/exynos_dp_core.c
index 2d0d144..2ed9776 100644
--- a/drivers/video/exynos/exynos_dp_core.c
+++ b/drivers/video/exynos/exynos_dp_core.c
@@ -1076,11 +1076,9 @@ static int exynos_dp_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	dp->reg_base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!dp->reg_base) {
-		dev_err(&pdev->dev, "failed to ioremap\n");
-		return -ENOMEM;
-	}
+	dp->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(dp->reg_base))
+		return PTR_ERR(dp->reg_base);
 
 	dp->irq = platform_get_irq(pdev, 0);
 	if (dp->irq == -ENXIO) {
diff --git a/drivers/video/geode/Kconfig b/drivers/video/geode/Kconfig
index c5d8ba4..21e351a 100644
--- a/drivers/video/geode/Kconfig
+++ b/drivers/video/geode/Kconfig
@@ -2,14 +2,14 @@
 # Geode family framebuffer configuration
 #
 config FB_GEODE
-	bool "AMD Geode family framebuffer support (EXPERIMENTAL)"
-	depends on FB && PCI && EXPERIMENTAL && X86
+	bool "AMD Geode family framebuffer support"
+	depends on FB && PCI && X86
 	---help---
 	  Say 'Y' here to allow you to select framebuffer drivers for
 	  the AMD Geode family of processors.
 
 config FB_GEODE_LX
-	tristate "AMD Geode LX framebuffer support (EXPERIMENTAL)"
+	tristate "AMD Geode LX framebuffer support"
 	depends on FB && FB_GEODE
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
@@ -24,8 +24,8 @@ config FB_GEODE_LX
 	  If unsure, say N.
 
 config FB_GEODE_GX
-	tristate "AMD Geode GX framebuffer support (EXPERIMENTAL)"
-	depends on FB && FB_GEODE && EXPERIMENTAL
+	tristate "AMD Geode GX framebuffer support"
+	depends on FB && FB_GEODE
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
@@ -39,8 +39,8 @@ config FB_GEODE_GX
 	  If unsure, say N.
 
 config FB_GEODE_GX1
-	tristate "AMD Geode GX1 framebuffer support (EXPERIMENTAL)"
-	depends on FB && FB_GEODE && EXPERIMENTAL
+	tristate "AMD Geode GX1 framebuffer support"
+	depends on FB && FB_GEODE
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
index d999bb5..36979b4 100644
--- a/drivers/video/jz4740_fb.c
+++ b/drivers/video/jz4740_fb.c
@@ -660,9 +660,9 @@ static int jzfb_probe(struct platform_device *pdev)
 	}
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	jzfb->base = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!jzfb->base) {
-		ret = -EBUSY;
+	jzfb->base = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(jzfb->base)) {
+		ret = PTR_ERR(jzfb->base);
 		goto err_framebuffer_release;
 	}
 
diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig
index b48f95f..e512581 100644
--- a/drivers/video/omap/Kconfig
+++ b/drivers/video/omap/Kconfig
@@ -1,5 +1,5 @@
 config FB_OMAP
-	tristate "OMAP frame buffer support (EXPERIMENTAL)"
+	tristate "OMAP frame buffer support"
 	depends on FB
 	depends on ARCH_OMAP1
 	select FB_CFB_FILLRECT
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 769d082..72923645 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -1080,11 +1080,9 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
 	}
 
 	/* Base address taken from platform */
-	hdmi.ip_data.base_wp = devm_request_and_ioremap(&pdev->dev, res);
-	if (!hdmi.ip_data.base_wp) {
-		DSSERR("can't ioremap WP\n");
-		return -ENOMEM;
-	}
+	hdmi.ip_data.base_wp = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hdmi.ip_data.base_wp))
+		return PTR_ERR(hdmi.ip_data.base_wp);
 
 	r = hdmi_get_clocks(pdev);
 	if (r) {
diff --git a/drivers/video/omap2/vrfb.c b/drivers/video/omap2/vrfb.c
index 5d8fdac..10560ef 100644
--- a/drivers/video/omap2/vrfb.c
+++ b/drivers/video/omap2/vrfb.c
@@ -20,6 +20,7 @@
 
 /*#define DEBUG*/
 
+#include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/ioport.h>
@@ -357,11 +358,9 @@ static int __init vrfb_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	vrfb_base = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!vrfb_base) {
-		dev_err(&pdev->dev, "can't ioremap vrfb memory\n");
-		return -ENOMEM;
-	}
+	vrfb_base = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(vrfb_base))
+		return PTR_ERR(vrfb_base);
 
 	num_ctxs = pdev->num_resources - 1;
 
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 9b57a23..968a625 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -1421,10 +1421,9 @@ static int s3c_fb_probe(struct platform_device *pdev)
 	pm_runtime_enable(sfb->dev);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	sfb->regs = devm_request_and_ioremap(dev, res);
-	if (!sfb->regs) {
-		dev_err(dev, "failed to map registers\n");
-		ret = -ENXIO;
+	sfb->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(sfb->regs)) {
+		ret = PTR_ERR(sfb->regs);
 		goto err_lcd_clk;
 	}
 
diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index 8d5bddb..c6683f2 100644
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -8,8 +8,8 @@ config VIRTIO
 menu "Virtio drivers"
 
 config VIRTIO_PCI
-	tristate "PCI driver for virtio devices (EXPERIMENTAL)"
-	depends on PCI && EXPERIMENTAL
+	tristate "PCI driver for virtio devices"
+	depends on PCI
 	select VIRTIO
 	---help---
 	  This drivers provides support for virtio based paravirtual device
@@ -32,8 +32,8 @@ config VIRTIO_BALLOON
 	 If unsure, say M.
 
  config VIRTIO_MMIO
- 	tristate "Platform bus driver for memory mapped virtio devices (EXPERIMENTAL)"
- 	depends on HAS_IOMEM && EXPERIMENTAL
+	tristate "Platform bus driver for memory mapped virtio devices"
+	depends on HAS_IOMEM
  	select VIRTIO
  	---help---
  	 This drivers provides support for memory mapped virtio
diff --git a/drivers/vlynq/Kconfig b/drivers/vlynq/Kconfig
index d874b4f..e011620 100644
--- a/drivers/vlynq/Kconfig
+++ b/drivers/vlynq/Kconfig
@@ -1,5 +1,5 @@
 menu "TI VLYNQ"
-	depends on AR7 && EXPERIMENTAL
+	depends on AR7
 
 config VLYNQ
 	bool "TI VLYNQ bus support"
diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 184dbce..db2390a 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -560,11 +560,9 @@ static int omap_hdq_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	hdq_data->hdq_base = devm_request_and_ioremap(dev, res);
-	if (!hdq_data->hdq_base) {
-		dev_dbg(&pdev->dev, "ioremap failed\n");
-		return -ENOMEM;
-	}
+	hdq_data->hdq_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(hdq_data->hdq_base))
+		return PTR_ERR(hdq_data->hdq_base);
 
 	hdq_data->hdq_usecount = 0;
 	mutex_init(&hdq_data->hdq_mutex);
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index 3003e2a..2f3cc8f 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -285,11 +285,9 @@ static int ar7_wdt_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	ar7_wdt = devm_request_and_ioremap(&pdev->dev, ar7_regs_wdt);
-	if (!ar7_wdt) {
-		pr_err("could not ioremap registers\n");
-		return -ENXIO;
-	}
+	ar7_wdt = devm_ioremap_resource(&pdev->dev, ar7_regs_wdt);
+	if (IS_ERR(ar7_wdt))
+		return PTR_ERR(ar7_wdt);
 
 	vbus_clk = clk_get(NULL, "vbus");
 	if (IS_ERR(vbus_clk)) {
diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c
index 2896430..7a715e3 100644
--- a/drivers/watchdog/at32ap700x_wdt.c
+++ b/drivers/watchdog/at32ap700x_wdt.c
@@ -436,17 +436,7 @@ static struct platform_driver at32_wdt_driver = {
 	.shutdown	= at32_wdt_shutdown,
 };
 
-static int __init at32_wdt_init(void)
-{
-	return platform_driver_probe(&at32_wdt_driver, at32_wdt_probe);
-}
-module_init(at32_wdt_init);
-
-static void __exit at32_wdt_exit(void)
-{
-	platform_driver_unregister(&at32_wdt_driver);
-}
-module_exit(at32_wdt_exit);
+module_platform_driver_probe(at32_wdt_driver, at32_wdt_probe);
 
 MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
 MODULE_DESCRIPTION("Watchdog driver for Atmel AT32AP700X");
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index dc42e44..c08933c 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -321,18 +321,7 @@ static struct platform_driver at91wdt_driver = {
 	},
 };
 
-static int __init at91sam_wdt_init(void)
-{
-	return platform_driver_probe(&at91wdt_driver, at91wdt_probe);
-}
-
-static void __exit at91sam_wdt_exit(void)
-{
-	platform_driver_unregister(&at91wdt_driver);
-}
-
-module_init(at91sam_wdt_init);
-module_exit(at91sam_wdt_exit);
+module_platform_driver_probe(at91wdt_driver, at91wdt_probe);
 
 MODULE_AUTHOR("Renaud CERRATO <r.cerrato@til-technologies.fr>");
 MODULE_DESCRIPTION("Watchdog driver for Atmel AT91SAM9x processors");
diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c
index cb5da5c..b9b8a8b 100644
--- a/drivers/watchdog/coh901327_wdt.c
+++ b/drivers/watchdog/coh901327_wdt.c
@@ -451,17 +451,7 @@ static struct platform_driver coh901327_driver = {
 	.resume		= coh901327_resume,
 };
 
-static int __init coh901327_init(void)
-{
-	return platform_driver_probe(&coh901327_driver, coh901327_probe);
-}
-module_init(coh901327_init);
-
-static void __exit coh901327_exit(void)
-{
-	platform_driver_unregister(&coh901327_driver);
-}
-module_exit(coh901327_exit);
+module_platform_driver_probe(coh901327_driver, coh901327_probe);
 
 MODULE_AUTHOR("Linus Walleij <linus.walleij@stericsson.com>");
 MODULE_DESCRIPTION("COH 901 327 Watchdog");
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index a0eba3c..2037669 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -301,9 +301,9 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
 	if (!mem)
 		return -EINVAL;
 
-	dw_wdt.regs = devm_request_and_ioremap(&pdev->dev, mem);
-	if (!dw_wdt.regs)
-		return -ENOMEM;
+	dw_wdt.regs = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(dw_wdt.regs))
+		return PTR_ERR(dw_wdt.regs);
 
 	dw_wdt.clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(dw_wdt.clk))
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 9a45d029..ff90882 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -262,11 +262,9 @@ static int __init imx2_wdt_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	imx2_wdt.base = devm_request_and_ioremap(&pdev->dev, res);
-	if (!imx2_wdt.base) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		return -ENOMEM;
-	}
+	imx2_wdt.base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(imx2_wdt.base))
+		return PTR_ERR(imx2_wdt.base);
 
 	imx2_wdt.clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(imx2_wdt.clk)) {
@@ -342,17 +340,7 @@ static struct platform_driver imx2_wdt_driver = {
 	},
 };
 
-static int __init imx2_wdt_init(void)
-{
-	return platform_driver_probe(&imx2_wdt_driver, imx2_wdt_probe);
-}
-module_init(imx2_wdt_init);
-
-static void __exit imx2_wdt_exit(void)
-{
-	platform_driver_unregister(&imx2_wdt_driver);
-}
-module_exit(imx2_wdt_exit);
+module_platform_driver_probe(imx2_wdt_driver, imx2_wdt_probe);
 
 MODULE_AUTHOR("Wolfram Sang");
 MODULE_DESCRIPTION("Watchdog driver for IMX2 and later");
diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
index a61408f..1cb25f6 100644
--- a/drivers/watchdog/jz4740_wdt.c
+++ b/drivers/watchdog/jz4740_wdt.c
@@ -171,9 +171,9 @@ static int jz4740_wdt_probe(struct platform_device *pdev)
 	watchdog_set_drvdata(jz4740_wdt, drvdata);
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	drvdata->base = devm_request_and_ioremap(&pdev->dev, res);
-	if (drvdata->base == NULL) {
-		ret = -EBUSY;
+	drvdata->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(drvdata->base)) {
+		ret = PTR_ERR(drvdata->base);
 		goto err_out;
 	}
 
diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c
index 79fe01b..088fd0c 100644
--- a/drivers/watchdog/lantiq_wdt.c
+++ b/drivers/watchdog/lantiq_wdt.c
@@ -197,11 +197,9 @@ ltq_wdt_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	ltq_wdt_membase = devm_request_and_ioremap(&pdev->dev, res);
-	if (!ltq_wdt_membase) {
-		dev_err(&pdev->dev, "cannot remap I/O memory region\n");
-		return -ENOMEM;
-	}
+	ltq_wdt_membase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ltq_wdt_membase))
+		return PTR_ERR(ltq_wdt_membase);
 
 	/* we do not need to enable the clock as it is always running */
 	clk = clk_get_io();
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 773c661..cc9d328 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -14,6 +14,7 @@
  * another interface, some abstraction will have to be introduced.
  */
 
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/types.h>
@@ -198,9 +199,9 @@ static int max63xx_wdt_probe(struct platform_device *pdev)
 	heartbeat = current_timeout->twd;
 
 	wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	wdt_base = devm_request_and_ioremap(&pdev->dev, wdt_mem);
-	if (!wdt_base)
-		return -ENOMEM;
+	wdt_base = devm_ioremap_resource(&pdev->dev, wdt_mem);
+	if (IS_ERR(wdt_base))
+		return PTR_ERR(wdt_base);
 
 	max63xx_wdt_dev.timeout = heartbeat;
 	watchdog_set_nowayout(&max63xx_wdt_dev, nowayout);
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index dcba5da..de1f3fa 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -155,9 +155,9 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
 		heartbeat = DEFAULT_HEARTBEAT;
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	wdt_base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!wdt_base)
-		return -EADDRINUSE;
+	wdt_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(wdt_base))
+		return PTR_ERR(wdt_base);
 
 	wdt_clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(wdt_clk))
diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c
index 98e1637..88f23c5 100644
--- a/drivers/watchdog/txx9wdt.c
+++ b/drivers/watchdog/txx9wdt.c
@@ -121,9 +121,9 @@ static int __init txx9wdt_probe(struct platform_device *dev)
 	}
 
 	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	txx9wdt_reg = devm_request_and_ioremap(&dev->dev, res);
-	if (!txx9wdt_reg) {
-		ret = -EBUSY;
+	txx9wdt_reg = devm_ioremap_resource(&dev->dev, res);
+	if (IS_ERR(txx9wdt_reg)) {
+		ret = PTR_ERR(txx9wdt_reg);
 		goto exit;
 	}
 
@@ -172,18 +172,7 @@ static struct platform_driver txx9wdt_driver = {
 	},
 };
 
-static int __init watchdog_init(void)
-{
-	return platform_driver_probe(&txx9wdt_driver, txx9wdt_probe);
-}
-
-static void __exit watchdog_exit(void)
-{
-	platform_driver_unregister(&txx9wdt_driver);
-}
-
-module_init(watchdog_init);
-module_exit(watchdog_exit);
+module_platform_driver_probe(txx9wdt_driver, txx9wdt_probe);
 
 MODULE_DESCRIPTION("TXx9 Watchdog Driver");
 MODULE_LICENSE("GPL");