i2c-smbus: Use device_lock/device_unlock

Use the new device locking/unlocking API.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/i2c/i2c-smbus.c b/drivers/i2c/i2c-smbus.c
index 421278221243..7a8201ed2181 100644
--- a/drivers/i2c/i2c-smbus.c
+++ b/drivers/i2c/i2c-smbus.c
@@ -22,7 +22,6 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/device.h>
-#include <linux/semaphore.h>
 #include <linux/interrupt.h>
 #include <linux/workqueue.h>
 #include <linux/i2c.h>
@@ -55,7 +54,7 @@ static int smbus_do_alert(struct device *dev, void *addrp)
          * Drivers should either disable alerts, or provide at least
          * a minimal handler.  Lock so client->driver won't change.
          */
-        down(&dev->sem);
+        device_lock(dev);
         if (client->driver) {
                 if (client->driver->alert)
                         client->driver->alert(client, data->flag);
@@ -63,7 +62,7 @@ static int smbus_do_alert(struct device *dev, void *addrp)
                         dev_warn(&client->dev, "no driver alert()!\n");
         } else
                 dev_dbg(&client->dev, "alert with no driver\n");
-        up(&dev->sem);
+        device_unlock(dev);
 
         /* Stop iterating after we find the device */
         return -EBUSY;