lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] hwmon: Semaphore to mutex conversions

Browse Source 
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>
This commit is contained in:
Ingo Molnar
2006-01-18 23:19:26 +01:00
committed by Greg Kroah-Hartman
parent 3fb9a65529
commit 9a61bf6300
36 changed files with 632 additions and 596 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/hwmon/lm63.c
View File

@@ -45,6 +45,7 @@
#include <linux/hwmon-sysfs.h>
#include <linux/hwmon.h>
#include <linux/err.h>
#include <linux/mutex.h>
/*
* Addresses to scan
@@ -153,7 +154,7 @@ static struct i2c_driver lm63_driver = {
struct lm63_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 */
@@ -192,13 +193,13 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *dummy,
struct lm63_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
down(&data->update_lock);
mutex_lock(&data->update_lock);
data->fan[1] = FAN_TO_REG(val);
i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_LSB,
data->fan[1] & 0xFF);
i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_MSB,
data->fan[1] >> 8);
up(&data->update_lock);
mutex_unlock(&data->update_lock);
return count;
}
@@ -222,12 +223,12 @@ static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy,
return -EPERM;
val = simple_strtoul(buf, NULL, 10);
down(&data->update_lock);
mutex_lock(&data->update_lock);
data->pwm1_value = val <= 0 ? 0 :
val >= 255 ? 2 * data->pwm1_freq :
(val * data->pwm1_freq * 2 + 127) / 255;
i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1_value);
up(&data->update_lock);
mutex_unlock(&data->update_lock);
return count;
}
@@ -253,10 +254,10 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *dummy,
struct lm63_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
down(&data->update_lock);
mutex_lock(&data->update_lock);
data->temp8[1] = TEMP8_TO_REG(val);
i2c_smbus_write_byte_data(client, LM63_REG_LOCAL_HIGH, data->temp8[1]);
up(&data->update_lock);
mutex_unlock(&data->update_lock);
return count;
}
@@ -284,13 +285,13 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
long val = simple_strtol(buf, NULL, 10);
int nr = attr->index;
down(&data->update_lock);
mutex_lock(&data->update_lock);
data->temp11[nr] = TEMP11_TO_REG(val);
i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
data->temp11[nr] >> 8);
i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
data->temp11[nr] & 0xff);
up(&data->update_lock);
mutex_unlock(&data->update_lock);
return count;
}
@@ -314,11 +315,11 @@ static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute *
long val = simple_strtol(buf, NULL, 10);
long hyst;
down(&data->update_lock);
mutex_lock(&data->update_lock);
hyst = TEMP8_FROM_REG(data->temp8[2]) - val;
i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST,
HYST_TO_REG(hyst));
up(&data->update_lock);
mutex_unlock(&data->update_lock);
return count;
}
@@ -427,7 +428,7 @@ static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
strlcpy(new_client->name, "lm63", 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)))
@@ -530,7 +531,7 @@ static struct lm63_data *lm63_update_device(struct device *dev)
struct i2c_client *client = to_i2c_client(dev);
struct lm63_data *data = i2c_get_clientdata(client);
down(&data->update_lock);
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
if (data->config & 0x04) { /* tachometer enabled */
@@ -582,7 +583,7 @@ static struct lm63_data *lm63_update_device(struct device *dev)
data->valid = 1;
}
up(&data->update_lock);
mutex_unlock(&data->update_lock);
return data;
}