[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/lm80.c b/drivers/hwmon/lm80.c
index c9a7cde..f72120d 100644
--- a/drivers/hwmon/lm80.c
+++ b/drivers/hwmon/lm80.c
@@ -28,6 +28,7 @@
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/err.h>
+#include <linux/mutex.h>
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c,
@@ -108,7 +109,7 @@
struct lm80_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 */
@@ -191,10 +192,10 @@
struct lm80_data *data = i2c_get_clientdata(client); \
long val = simple_strtol(buf, NULL, 10); \
\
- down(&data->update_lock);\
+ mutex_lock(&data->update_lock);\
data->value = IN_TO_REG(val); \
lm80_write_value(client, reg, data->value); \
- up(&data->update_lock);\
+ mutex_unlock(&data->update_lock);\
return count; \
}
set_in(min0, in_min[0], LM80_REG_IN_MIN(0));
@@ -241,10 +242,10 @@
struct lm80_data *data = i2c_get_clientdata(client); \
long val = simple_strtoul(buf, NULL, 10); \
\
- down(&data->update_lock);\
+ mutex_lock(&data->update_lock);\
data->value = FAN_TO_REG(val, DIV_FROM_REG(data->div)); \
lm80_write_value(client, reg, data->value); \
- up(&data->update_lock);\
+ mutex_unlock(&data->update_lock);\
return count; \
}
set_fan(min1, fan_min[0], LM80_REG_FAN_MIN(1), fan_div[0]);
@@ -263,7 +264,7 @@
u8 reg;
/* Save fan_min */
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
min = FAN_FROM_REG(data->fan_min[nr],
DIV_FROM_REG(data->fan_div[nr]));
@@ -275,7 +276,7 @@
default:
dev_err(&client->dev, "fan_div value %ld not "
"supported. Choose one of 1, 2, 4 or 8!\n", val);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return -EINVAL;
}
@@ -286,7 +287,7 @@
/* Restore fan_min */
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
lm80_write_value(client, LM80_REG_FAN_MIN(nr + 1), data->fan_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -325,10 +326,10 @@
struct lm80_data *data = i2c_get_clientdata(client); \
long val = simple_strtoul(buf, NULL, 10); \
\
- down(&data->update_lock); \
+ mutex_lock(&data->update_lock); \
data->value = TEMP_LIMIT_TO_REG(val); \
lm80_write_value(client, reg, data->value); \
- up(&data->update_lock); \
+ mutex_unlock(&data->update_lock); \
return count; \
}
set_temp(hot_max, temp_hot_max, LM80_REG_TEMP_HOT_MAX);
@@ -437,7 +438,7 @@
/* 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)))
@@ -545,7 +546,7 @@
struct lm80_data *data = i2c_get_clientdata(client);
int i;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
dev_dbg(&client->dev, "Starting lm80 update\n");
@@ -585,7 +586,7 @@
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}