[PATCH] hwmon: Semaphore to mutex conversions

[safe/jmp/linux-2.6] / drivers / hwmon / sis5595.c

diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c
index 8be5189..4db0dd8 100644 (file)
--- a/drivers/hwmon/sis5595.c
+++ b/drivers/hwmon/sis5595.c
@@ -60,6 +60,7 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
+#include <linux/mutex.h>
 #include <asm/io.h>
 
 
@@ -167,9 +168,9 @@ static inline u8 DIV_TO_REG(int val)
 struct sis5595_data {
        struct i2c_client client;
        struct class_device *class_dev;
-       struct semaphore lock;
+       struct mutex lock;
 
-       struct semaphore update_lock;
+       struct mutex update_lock;
        char valid;             /* !=0 if following fields are valid */
        unsigned long last_updated;     /* In jiffies */
        char maxins;            /* == 3 if temp enabled, otherwise == 4 */
@@ -231,10 +232,10 @@ static ssize_t set_in_min(struct device *dev, const char *buf,
        struct sis5595_data *data = i2c_get_clientdata(client);
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
-       down(&data->update_lock);
+       mutex_lock(&data->update_lock);
        data->in_min[nr] = IN_TO_REG(val);
        sis5595_write_value(client, SIS5595_REG_IN_MIN(nr), data->in_min[nr]);
-       up(&data->update_lock);
+       mutex_unlock(&data->update_lock);
        return count;
 }
 
@@ -245,10 +246,10 @@ static ssize_t set_in_max(struct device *dev, const char *buf,
        struct sis5595_data *data = i2c_get_clientdata(client);
        unsigned long val = simple_strtoul(buf, NULL, 10);
 
-       down(&data->update_lock);
+       mutex_lock(&data->update_lock);
        data->in_max[nr] = IN_TO_REG(val);
        sis5595_write_value(client, SIS5595_REG_IN_MAX(nr), data->in_max[nr]);
-       up(&data->update_lock);
+       mutex_unlock(&data->update_lock);
        return count;
 }
 
@@ -310,10 +311,10 @@ static ssize_t set_temp_over(struct device *dev, struct device_attribute *attr,
        struct sis5595_data *data = i2c_get_clientdata(client);
        long val = simple_strtol(buf, NULL, 10);
 
-       down(&data->update_lock);
+       mutex_lock(&data->update_lock);
        data->temp_over = TEMP_TO_REG(val);
        sis5595_write_value(client, SIS5595_REG_TEMP_OVER, data->temp_over);
-       up(&data->update_lock);
+       mutex_unlock(&data->update_lock);
        return count;
 }
 
@@ -329,10 +330,10 @@ static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *attr,
        struct sis5595_data *data = i2c_get_clientdata(client);
        long val = simple_strtol(buf, NULL, 10);
 
-       down(&data->update_lock);
+       mutex_lock(&data->update_lock);
        data->temp_hyst = TEMP_TO_REG(val);
        sis5595_write_value(client, SIS5595_REG_TEMP_HYST, data->temp_hyst);
-       up(&data->update_lock);
+       mutex_unlock(&data->update_lock);
        return count;
 }
 
@@ -364,10 +365,10 @@ static ssize_t set_fan_min(struct device *dev, const char *buf,
        struct sis5595_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_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
        sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
-       up(&data->update_lock);
+       mutex_unlock(&data->update_lock);
        return count;
 }
 
@@ -390,7 +391,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
        unsigned long val = simple_strtoul(buf, NULL, 10);
        int reg;
 
-       down(&data->update_lock);
+       mutex_lock(&data->update_lock);
        min = FAN_FROM_REG(data->fan_min[nr],
                        DIV_FROM_REG(data->fan_div[nr]));
        reg = sis5595_read_value(client, SIS5595_REG_FANDIV);
@@ -403,7 +404,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
        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;
        }
        
@@ -419,7 +420,7 @@ static ssize_t set_fan_div(struct device *dev, const char *buf,
        data->fan_min[nr] =
                FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
        sis5595_write_value(client, SIS5595_REG_FAN_MIN(nr), data->fan_min[nr]);
-       up(&data->update_lock);
+       mutex_unlock(&data->update_lock);
        return count;
 }
 
@@ -527,7 +528,7 @@ static int sis5595_detect(struct i2c_adapter *adapter)
 
        new_client = &data->client;
        new_client->addr = address;
-       init_MUTEX(&data->lock);
+       mutex_init(&data->lock);
        i2c_set_clientdata(new_client, data);
        new_client->adapter = adapter;
        new_client->driver = &sis5595_driver;
@@ -548,7 +549,7 @@ static int sis5595_detect(struct i2c_adapter *adapter)
        strlcpy(new_client->name, "sis5595", 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)))
@@ -635,20 +636,20 @@ static int sis5595_read_value(struct i2c_client *client, u8 reg)
        int res;
 
        struct sis5595_data *data = i2c_get_clientdata(client);
-       down(&data->lock);
+       mutex_lock(&data->lock);
        outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
        res = inb_p(client->addr + SIS5595_DATA_REG_OFFSET);
-       up(&data->lock);
+       mutex_unlock(&data->lock);
        return res;
 }
 
 static int sis5595_write_value(struct i2c_client *client, u8 reg, u8 value)
 {
        struct sis5595_data *data = i2c_get_clientdata(client);
-       down(&data->lock);
+       mutex_lock(&data->lock);
        outb_p(reg, client->addr + SIS5595_ADDR_REG_OFFSET);
        outb_p(value, client->addr + SIS5595_DATA_REG_OFFSET);
-       up(&data->lock);
+       mutex_unlock(&data->lock);
        return 0;
 }
 
@@ -667,7 +668,7 @@ static struct sis5595_data *sis5595_update_device(struct device *dev)
        struct sis5595_data *data = i2c_get_clientdata(client);
        int i;
 
-       down(&data->update_lock);
+       mutex_lock(&data->update_lock);
 
        if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
            || !data->valid) {
@@ -707,7 +708,7 @@ static struct sis5595_data *sis5595_update_device(struct device *dev)
                data->valid = 1;
        }
 
-       up(&data->update_lock);
+       mutex_unlock(&data->update_lock);
 
        return data;
 }