cris: Pushdown the bkl from ioctl

From: Frederic Weisbecker <fweisbec@gmail.com>

Pushdown the bkl to the remaining drivers using the
deprecated .ioctl.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>

3 files changed, 57 insertions, 25 deletions

diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index 4b0f65f..080927f 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -46,8 +46,7 @@ static char gpio_name[] = "etrax gpio";
 static wait_queue_head_t *gpio_wq;
 #endif
 
-static int gpio_ioctl(struct inode *inode, struct file *file,
-	unsigned int cmd, unsigned long arg);
+static int gpio_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 static ssize_t gpio_write(struct file *file, const char __user *buf,
 	size_t count, loff_t *off);
 static int gpio_open(struct inode *inode, struct file *filp);
@@ -505,8 +504,7 @@ static int
 gpio_leds_ioctl(unsigned int cmd, unsigned long arg);
 
 static int
-gpio_ioctl(struct inode *inode, struct file *file,
-	   unsigned int cmd, unsigned long arg)
+gpio_ioctl_unlocked(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	unsigned long flags;
 	unsigned long val;
@@ -684,6 +682,18 @@ gpio_ioctl(struct inode *inode, struct file *file,
 }
 
 static int
+gpio_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+       long ret;
+
+       lock_kernel();
+       ret = gpio_ioctl_unlocked(file, cmd, arg);
+       unlock_kernel();
+
+       return ret;
+}
+
+static int
 gpio_leds_ioctl(unsigned int cmd, unsigned long arg)
 {
 	unsigned char green;
@@ -713,12 +723,12 @@ gpio_leds_ioctl(unsigned int cmd, unsigned long arg)
 }
 
 static const struct file_operations gpio_fops = {
-	.owner       = THIS_MODULE,
-	.poll        = gpio_poll,
-	.ioctl       = gpio_ioctl,
-	.write       = gpio_write,
-	.open        = gpio_open,
-	.release     = gpio_release,
+	.owner          = THIS_MODULE,
+	.poll           = gpio_poll,
+	.unlocked_ioctl = gpio_ioctl,
+	.write          = gpio_write,
+	.open           = gpio_open,
+	.release        = gpio_release,
 };
 
 static void ioif_watcher(const unsigned int gpio_in_available,
diff --git a/arch/cris/arch-v10/drivers/i2c.c b/arch/cris/arch-v10/drivers/i2c.c
index a8737a8..399e089 100644
--- a/arch/cris/arch-v10/drivers/i2c.c
+++ b/arch/cris/arch-v10/drivers/i2c.c
@@ -580,8 +580,7 @@ i2c_release(struct inode *inode, struct file *filp)
  */
 
 static int
-i2c_ioctl(struct inode *inode, struct file *file,
-	  unsigned int cmd, unsigned long arg)
+i2c_ioctl_unlocked(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	if(_IOC_TYPE(cmd) != ETRAXI2C_IOCTYPE) {
 		return -EINVAL;
@@ -617,11 +616,22 @@ i2c_ioctl(struct inode *inode, struct file *file,
 	return 0;
 }
 
+static long i2c_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	long ret;
+
+	lock_kernel();
+	ret = i2c_ioctl_unlocked(file, cmd, arg);
+	unlock_kernel();
+
+	return ret;
+}
+
 static const struct file_operations i2c_fops = {
-	.owner    = THIS_MODULE,
-	.ioctl    = i2c_ioctl,
-	.open     = i2c_open,
-	.release  = i2c_release,
+	.owner		= THIS_MODULE,
+	.unlocked_ioctl	= i2c_ioctl,
+	.open		= i2c_open,
+	.release	= i2c_release,
 };
 
 int __init
diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
index 109dcd8..ee2dd43 100644
--- a/arch/cris/arch-v10/drivers/sync_serial.c
+++ b/arch/cris/arch-v10/drivers/sync_serial.c
@@ -157,7 +157,7 @@ static int sync_serial_open(struct inode *inode, struct file *file);
 static int sync_serial_release(struct inode *inode, struct file *file);
 static unsigned int sync_serial_poll(struct file *filp, poll_table *wait);
 
-static int sync_serial_ioctl(struct inode *inode, struct file *file,
+static int sync_serial_ioctl(struct file *file,
 	unsigned int cmd, unsigned long arg);
 static ssize_t sync_serial_write(struct file *file, const char *buf,
 	size_t count, loff_t *ppos);
@@ -244,13 +244,13 @@ static unsigned sync_serial_prescale_shadow;
 #define NUMBER_OF_PORTS 2
 
 static const struct file_operations sync_serial_fops = {
-	.owner   = THIS_MODULE,
-	.write   = sync_serial_write,
-	.read    = sync_serial_read,
-	.poll    = sync_serial_poll,
-	.ioctl   = sync_serial_ioctl,
-	.open    = sync_serial_open,
-	.release = sync_serial_release
+	.owner		= THIS_MODULE,
+	.write		= sync_serial_write,
+	.read		= sync_serial_read,
+	.poll		= sync_serial_poll,
+	.unlocked_ioctl	= sync_serial_ioctl,
+	.open		= sync_serial_open,
+	.release	= sync_serial_release
 };
 
 static int __init etrax_sync_serial_init(void)
@@ -678,7 +678,7 @@ static unsigned int sync_serial_poll(struct file *file, poll_table *wait)
 	return mask;
 }
 
-static int sync_serial_ioctl(struct inode *inode, struct file *file,
+static int sync_serial_ioctl_unlocked(struct file *file,
 		  unsigned int cmd, unsigned long arg)
 {
 	int return_val = 0;
@@ -956,6 +956,18 @@ static int sync_serial_ioctl(struct inode *inode, struct file *file,
 	return return_val;
 }
 
+static long sync_serial_ioctl(struct file *file,
+			      unsigned int cmd, unsigned long arg)
+{
+	long ret;
+
+	lock_kernel();
+	ret = sync_serial_ioctl_unlocked(file, cmd, arg);
+	unlock_kernel();
+
+	return ret;
+}
+
 
 static ssize_t sync_serial_write(struct file *file, const char *buf,
 	size_t count, loff_t *ppos)