diff options
author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-23 23:44:19 -0500 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-23 23:44:19 -0500 |
commit | 1ebbe2b20091d306453a5cf480a87e6cd28ae76f (patch) | |
tree | f5cd7a0fa69b8b1938cb5a0faed2e7b0628072a5 /drivers/hwmon/lm75.c | |
parent | ac58c9059da8886b5e8cde012a80266b18ca146e (diff) | |
parent | 674a396c6d2ba0341ebdd7c1c9950f32f018e2dd (diff) |
Merge branch 'linus'
Diffstat (limited to 'drivers/hwmon/lm75.c')
-rw-r--r-- | drivers/hwmon/lm75.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index 74ca2c8c61c..fc25b90ec24 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -25,6 +25,7 @@ #include <linux/i2c.h> #include <linux/hwmon.h> #include <linux/err.h> +#include <linux/mutex.h> #include "lm75.h" @@ -47,7 +48,7 @@ I2C_CLIENT_INSMOD_1(lm75); struct lm75_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 */ u16 temp_input; /* Register values */ @@ -91,10 +92,10 @@ static ssize_t set_##value(struct device *dev, struct device_attribute *attr, co struct lm75_data *data = i2c_get_clientdata(client); \ int temp = simple_strtoul(buf, NULL, 10); \ \ - down(&data->update_lock); \ + mutex_lock(&data->update_lock); \ data->value = LM75_TEMP_TO_REG(temp); \ lm75_write_value(client, reg, data->value); \ - up(&data->update_lock); \ + mutex_unlock(&data->update_lock); \ return count; \ } set(temp_max, LM75_REG_TEMP_OS); @@ -188,7 +189,7 @@ static int lm75_detect(struct i2c_adapter *adapter, int address, int kind) /* 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))) @@ -264,7 +265,7 @@ static struct lm75_data *lm75_update_device(struct device *dev) struct i2c_client *client = to_i2c_client(dev); struct lm75_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) || !data->valid) { @@ -277,7 +278,7 @@ static struct lm75_data *lm75_update_device(struct device *dev) data->valid = 1; } - up(&data->update_lock); + mutex_unlock(&data->update_lock); return data; } |