regulator: max8952: removed unused mutex.

This patch removes a mutex that is never used in the driver.

Reported-by: Axel Lin
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NLiam Girdwood <lrg@slimlogic.co.uk>

drivers/regulator/max8952.c

@@ -26,7 +26,6 @@
 #include <linux/platform_device.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/max8952.h>
-#include <linux/mutex.h>
 #include <linux/gpio.h>
 #include <linux/io.h>
 #include <linux/slab.h>
@@ -47,7 +46,6 @@ enum {
 struct max8952_data {
 	struct i2c_client	*client;
 	struct device		*dev;
-	struct mutex		mutex;
 	struct max8952_platform_data *pdata;
 	struct regulator_dev	*rdev;
 
@@ -208,7 +206,6 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client,
 	max8952->client = client;
 	max8952->dev = &client->dev;
 	max8952->pdata = pdata;
-	mutex_init(&max8952->mutex);
 
 	max8952->rdev = regulator_register(&regulator, max8952->dev,
 			&pdata->reg_data, max8952);