[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/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index d1e3ec0..7732aec 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -34,6 +34,7 @@
#include <linux/hwmon.h>
#include <linux/err.h>
#include <linux/init.h>
+#include <linux/mutex.h>
#include <asm/io.h>
/* Address is autodetected, there is no default value */
@@ -102,9 +103,9 @@
struct smsc47m1_data {
struct i2c_client client;
struct class_device *class_dev;
- struct semaphore lock;
+ struct mutex lock;
- struct semaphore update_lock;
+ struct mutex update_lock;
unsigned long last_updated; /* In jiffies */
u8 fan[2]; /* Register value */
@@ -188,18 +189,18 @@
struct smsc47m1_data *data = i2c_get_clientdata(client);
long rpmdiv, val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
rpmdiv = val * DIV_FROM_REG(data->fan_div[nr]);
if (983040 > 192 * rpmdiv || 2 * rpmdiv > 983040) {
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return -EINVAL;
}
data->fan_preload[nr] = 192 - ((983040 + rpmdiv / 2) / rpmdiv);
smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
data->fan_preload[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -220,14 +221,14 @@
if (new_div == old_div) /* No change */
return count;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
switch (new_div) {
case 1: data->fan_div[nr] = 0; break;
case 2: data->fan_div[nr] = 1; break;
case 4: data->fan_div[nr] = 2; break;
case 8: data->fan_div[nr] = 3; break;
default:
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return -EINVAL;
}
@@ -241,7 +242,7 @@
data->fan_preload[nr] = SENSORS_LIMIT(tmp, 0, 191);
smsc47m1_write_value(client, SMSC47M1_REG_FAN_PRELOAD(nr),
data->fan_preload[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -257,12 +258,12 @@
if (val < 0 || val > 255)
return -EINVAL;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->pwm[nr] &= 0x81; /* Preserve additional bits */
data->pwm[nr] |= PWM_TO_REG(val);
smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
data->pwm[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -278,12 +279,12 @@
if (val != 0 && val != 1)
return -EINVAL;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->pwm[nr] &= 0xFE; /* preserve the other bits */
data->pwm[nr] |= !val;
smsc47m1_write_value(client, SMSC47M1_REG_PWM(nr),
data->pwm[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
@@ -408,13 +409,13 @@
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
- init_MUTEX(&data->lock);
+ mutex_init(&data->lock);
new_client->adapter = adapter;
new_client->driver = &smsc47m1_driver;
new_client->flags = 0;
strlcpy(new_client->name, "smsc47m1", I2C_NAME_SIZE);
- init_MUTEX(&data->update_lock);
+ mutex_init(&data->update_lock);
/* If no function is properly configured, there's no point in
actually registering the chip. */
@@ -512,17 +513,17 @@
{
int res;
- down(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
+ mutex_lock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
res = inb_p(client->addr + reg);
- up(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
+ mutex_unlock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
return res;
}
static void smsc47m1_write_value(struct i2c_client *client, u8 reg, u8 value)
{
- down(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
+ mutex_lock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
outb_p(value, client->addr + reg);
- up(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
+ mutex_unlock(&((struct smsc47m1_data *) i2c_get_clientdata(client))->lock);
}
static struct smsc47m1_data *smsc47m1_update_device(struct device *dev,
@@ -531,7 +532,7 @@
struct i2c_client *client = to_i2c_client(dev);
struct smsc47m1_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) || init) {
int i;
@@ -558,7 +559,7 @@
data->last_updated = jiffies;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}