From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 1 Mar 2010 05:04:45 +0000 (+1100)
Subject: i2c-smbus: Use device_lock/device_unlock
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f635a1e74bd6001f06fe1df53d32daf2b28bf04b;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

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>
---

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;