[PATCH] hwmon: Semaphore to mutex conversions

convert drivers/hwmon/*.c semaphore use to mutexes.

the conversion was generated via scripts, and the result was validated
automatically via a script as well.

all affected hwmon drivers were build-tested.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 7 insertions, 6 deletions

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index 74ca2c8c61c3..fc25b90ec24a 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -25,6 +25,7 @@
 #include <linux/i2c.h>
 #include <linux/hwmon.h>
 #include <linux/err.h>
+#include <linux/mutex.h>
 #include "lm75.h"
 
 
@@ -47,7 +48,7 @@ I2C_CLIENT_INSMOD_1(lm75);
 struct lm75_data {
         struct i2c_client       client;
         struct class_device *class_dev;
-        struct semaphore        update_lock;
+        struct mutex            update_lock;
         char                    valid;          /* !=0 if following fields are valid */
         unsigned long           last_updated;   /* In jiffies */
         u16                     temp_input;     /* Register values */
@@ -91,10 +92,10 @@ static ssize_t set_##value(struct device *dev, struct device_attribute *attr, co
         struct lm75_data *data = i2c_get_clientdata(client);    \
         int temp = simple_strtoul(buf, NULL, 10);               \
                                                                 \
-        down(&data->update_lock);                               \
+        mutex_lock(&data->update_lock);                         \
         data->value = LM75_TEMP_TO_REG(temp);                   \
         lm75_write_value(client, reg, data->value);             \
-        up(&data->update_lock);                                 \
+        mutex_unlock(&data->update_lock);                                       \
         return count;                                           \
 }
 set(temp_max, LM75_REG_TEMP_OS);
@@ -188,7 +189,7 @@ static int lm75_detect(struct i2c_adapter *adapter, int address, int kind)
         /* Fill in the remaining client fields and put it into the global list */
         strlcpy(new_client->name, name, I2C_NAME_SIZE);
         data->valid = 0;
-        init_MUTEX(&data->update_lock);
+        mutex_init(&data->update_lock);
 
         /* Tell the I2C layer a new client has arrived */
         if ((err = i2c_attach_client(new_client)))
@@ -264,7 +265,7 @@ static struct lm75_data *lm75_update_device(struct device *dev)
         struct i2c_client *client = to_i2c_client(dev);
         struct lm75_data *data = i2c_get_clientdata(client);
 
-        down(&data->update_lock);
+        mutex_lock(&data->update_lock);
 
         if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
             || !data->valid) {
@@ -277,7 +278,7 @@ static struct lm75_data *lm75_update_device(struct device *dev)
                 data->valid = 1;
         }
 
-        up(&data->update_lock);
+        mutex_unlock(&data->update_lock);
 
         return data;
 }