1 files changed, 20 insertions, 11 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 068aa1c..d021c98 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -53,7 +53,7 @@ static inline int device_is_not_partition(struct device *dev)
  * it is attached to.  If it is not attached to a bus either, an empty
  * string will be returned.
  */
-const char *dev_driver_string(struct device *dev)
+const char *dev_driver_string(const struct device *dev)
 {
 	return dev->driver ? dev->driver->name :
 			(dev->bus ? dev->bus->name :
@@ -541,6 +541,7 @@ void device_initialize(struct device *dev)
 	spin_lock_init(&dev->devres_lock);
 	INIT_LIST_HEAD(&dev->devres_head);
 	device_init_wakeup(dev, 0);
+	device_pm_init(dev);
 	set_dev_node(dev, -1);
 }
 
@@ -843,13 +844,19 @@ int device_add(struct device *dev)
 {
 	struct device *parent = NULL;
 	struct class_interface *class_intf;
-	int error;
+	int error = -EINVAL;
 
 	dev = get_device(dev);
-	if (!dev || !strlen(dev->bus_id)) {
-		error = -EINVAL;
-		goto Done;
-	}
+	if (!dev)
+		goto done;
+
+	/* Temporarily support init_name if it is set.
+	 * It will override bus_id for now */
+	if (dev->init_name)
+		dev_set_name(dev, "%s", dev->init_name);
+
+	if (!strlen(dev->bus_id))
+		goto done;
 
 	pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
 
@@ -897,9 +904,10 @@ int device_add(struct device *dev)
 	error = bus_add_device(dev);
 	if (error)
 		goto BusError;
-	error = device_pm_add(dev);
+	error = dpm_sysfs_add(dev);
 	if (error)
-		goto PMError;
+		goto DPMError;
+	device_pm_add(dev);
 	kobject_uevent(&dev->kobj, KOBJ_ADD);
 	bus_attach_device(dev);
 	if (parent)
@@ -917,10 +925,10 @@ int device_add(struct device *dev)
 				class_intf->add_dev(dev, class_intf);
 		mutex_unlock(&dev->class->p->class_mutex);
 	}
- Done:
+done:
 	put_device(dev);
 	return error;
- PMError:
+ DPMError:
 	bus_remove_device(dev);
  BusError:
 	if (dev->bus)
@@ -944,7 +952,7 @@ int device_add(struct device *dev)
 	cleanup_device_parent(dev);
 	if (parent)
 		put_device(parent);
-	goto Done;
+	goto done;
 }
 
 /**
@@ -1007,6 +1015,7 @@ void device_del(struct device *dev)
 	struct class_interface *class_intf;
 
 	device_pm_remove(dev);
+	dpm_sysfs_remove(dev);
 	if (parent)
 		klist_del(&dev->knode_parent);
 	if (MAJOR(dev->devt)) {