[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>
diff --git a/drivers/hwmon/lm83.c b/drivers/hwmon/lm83.c
index 26dfa9e..aac4ec2 100644
--- a/drivers/hwmon/lm83.c
+++ b/drivers/hwmon/lm83.c
@@ -35,6 +35,7 @@
#include <linux/hwmon-sysfs.h>
#include <linux/hwmon.h>
#include <linux/err.h>
+#include <linux/mutex.h>
/*
* Addresses to scan
@@ -139,7 +140,7 @@
struct lm83_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 */
@@ -171,11 +172,11 @@
long val = simple_strtol(buf, NULL, 10);
int nr = attr->index;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp[nr] = TEMP_TO_REG(val);
i2c_smbus_write_byte_data(client, LM83_REG_W_HIGH[nr - 4],
data->temp[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -300,7 +301,7 @@
/* We can fill in the remaining client fields */
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)))
@@ -373,7 +374,7 @@
struct i2c_client *client = to_i2c_client(dev);
struct lm83_data *data = i2c_get_clientdata(client);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
int nr;
@@ -393,7 +394,7 @@
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}