diff options
Diffstat (limited to 'drivers/hwmon/w83792d.c')
| -rw-r--r-- | drivers/hwmon/w83792d.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c index 2e86e188b27a..6865c64d8a51 100644 --- a/drivers/hwmon/w83792d.c +++ b/drivers/hwmon/w83792d.c @@ -43,6 +43,7 @@ #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> +#include <linux/mutex.h> /* Addresses to scan */ static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; @@ -271,7 +272,7 @@ struct w83792d_data { struct class_device *class_dev; enum chips type; - struct semaphore update_lock; + struct mutex update_lock; char valid; /* !=0 if following fields are valid */ unsigned long last_updated; /* In jiffies */ @@ -1222,7 +1223,7 @@ w83792d_detect(struct i2c_adapter *adapter, int address, int kind) data->type = kind; 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(client))) @@ -1373,7 +1374,7 @@ static struct w83792d_data *w83792d_update_device(struct device *dev) int i, j; u8 reg_array_tmp[4], pwm_array_tmp[7], reg_tmp; - down(&data->update_lock); + mutex_lock(&data->update_lock); if (time_after (jiffies - data->last_updated, (unsigned long) (HZ * 3)) @@ -1484,7 +1485,7 @@ static struct w83792d_data *w83792d_update_device(struct device *dev) data->valid = 1; } - up(&data->update_lock); + mutex_unlock(&data->update_lock); #ifdef DEBUG w83792d_print_debug(data, dev); |
