diff options
Diffstat (limited to 'drivers/hwmon/adm1025.c')
| -rw-r--r-- | drivers/hwmon/adm1025.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/hwmon/adm1025.c b/drivers/hwmon/adm1025.c index 9331c56d2ba6..a4c859c9fbf8 100644 --- a/drivers/hwmon/adm1025.c +++ b/drivers/hwmon/adm1025.c @@ -53,6 +53,7 @@ #include <linux/hwmon.h> #include <linux/hwmon-vid.h> #include <linux/err.h> +#include <linux/mutex.h> /* * Addresses to scan @@ -133,7 +134,7 @@ static struct i2c_driver adm1025_driver = { struct adm1025_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 */ @@ -207,11 +208,11 @@ static ssize_t set_in##offset##_min(struct device *dev, struct device_attribute struct adm1025_data *data = i2c_get_clientdata(client); \ long val = simple_strtol(buf, NULL, 10); \ \ - down(&data->update_lock); \ + mutex_lock(&data->update_lock); \ data->in_min[offset] = IN_TO_REG(val, in_scale[offset]); \ i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MIN(offset), \ data->in_min[offset]); \ - up(&data->update_lock); \ + mutex_unlock(&data->update_lock); \ return count; \ } \ static ssize_t set_in##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \ @@ -221,11 +222,11 @@ static ssize_t set_in##offset##_max(struct device *dev, struct device_attribute struct adm1025_data *data = i2c_get_clientdata(client); \ long val = simple_strtol(buf, NULL, 10); \ \ - down(&data->update_lock); \ + mutex_lock(&data->update_lock); \ data->in_max[offset] = IN_TO_REG(val, in_scale[offset]); \ i2c_smbus_write_byte_data(client, ADM1025_REG_IN_MAX(offset), \ data->in_max[offset]); \ - up(&data->update_lock); \ + mutex_unlock(&data->update_lock); \ return count; \ } \ static DEVICE_ATTR(in##offset##_min, S_IWUSR | S_IRUGO, \ @@ -247,11 +248,11 @@ static ssize_t set_temp##offset##_min(struct device *dev, struct device_attribut struct adm1025_data *data = i2c_get_clientdata(client); \ long val = simple_strtol(buf, NULL, 10); \ \ - down(&data->update_lock); \ + mutex_lock(&data->update_lock); \ data->temp_min[offset-1] = TEMP_TO_REG(val); \ i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_LOW(offset-1), \ data->temp_min[offset-1]); \ - up(&data->update_lock); \ + mutex_unlock(&data->update_lock); \ return count; \ } \ static ssize_t set_temp##offset##_max(struct device *dev, struct device_attribute *attr, const char *buf, \ @@ -261,11 +262,11 @@ static ssize_t set_temp##offset##_max(struct device *dev, struct device_attribut struct adm1025_data *data = i2c_get_clientdata(client); \ long val = simple_strtol(buf, NULL, 10); \ \ - down(&data->update_lock); \ + mutex_lock(&data->update_lock); \ data->temp_max[offset-1] = TEMP_TO_REG(val); \ i2c_smbus_write_byte_data(client, ADM1025_REG_TEMP_HIGH(offset-1), \ data->temp_max[offset-1]); \ - up(&data->update_lock); \ + mutex_unlock(&data->update_lock); \ return count; \ } \ static DEVICE_ATTR(temp##offset##_min, S_IWUSR | S_IRUGO, \ @@ -404,7 +405,7 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind) /* 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))) @@ -523,7 +524,7 @@ static struct adm1025_data *adm1025_update_device(struct device *dev) struct i2c_client *client = to_i2c_client(dev); struct adm1025_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 i; @@ -558,7 +559,7 @@ static struct adm1025_data *adm1025_update_device(struct device *dev) data->valid = 1; } - up(&data->update_lock); + mutex_unlock(&data->update_lock); return data; } |