1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/hwmon/w83l785ts.c b/drivers/hwmon/w83l785ts.c
index f66c0cfdeda7..3f2bac125fb1 100644
--- a/drivers/hwmon/w83l785ts.c
+++ b/drivers/hwmon/w83l785ts.c
@@ -39,6 +39,7 @@
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/err.h>
+#include <linux/mutex.h>
 
 /* How many retries on register read error */
 #define MAX_RETRIES     5
@@ -107,7 +108,7 @@ static struct i2c_driver w83l785ts_driver = {
 struct w83l785ts_data {
         struct i2c_client client;
         struct class_device *class_dev;
-        struct semaphore update_lock;
+        struct mutex update_lock;
         char valid; /* zero until following fields are valid */
         unsigned long last_updated; /* in jiffies */
 
@@ -221,7 +222,7 @@ static int w83l785ts_detect(struct i2c_adapter *adapter, int address, int kind)
         /* We can fill in the remaining client fields. */
         strlcpy(new_client->name, "w83l785ts", I2C_NAME_SIZE);
         data->valid = 0;
-        init_MUTEX(&data->update_lock);
+        mutex_init(&data->update_lock);
 
         /* Default values in case the first read fails (unlikely). */
         data->temp[1] = data->temp[0] = 0;
@@ -299,7 +300,7 @@ static struct w83l785ts_data *w83l785ts_update_device(struct device *dev)
         struct i2c_client *client = to_i2c_client(dev);
         struct w83l785ts_data *data = i2c_get_clientdata(client);
 
-        down(&data->update_lock);
+        mutex_lock(&data->update_lock);
 
         if (!data->valid || time_after(jiffies, data->last_updated + HZ * 2)) {
                 dev_dbg(&client->dev, "Updating w83l785ts data.\n");
@@ -312,7 +313,7 @@ static struct w83l785ts_data *w83l785ts_update_device(struct device *dev)
                 data->valid = 1;
         }
 
-        up(&data->update_lock);
+        mutex_unlock(&data->update_lock);
 
         return data;
 }