diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/lm70.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c index dd366889ce9..d435f003292 100644 --- a/drivers/hwmon/lm70.c +++ b/drivers/hwmon/lm70.c @@ -31,14 +31,15 @@ #include <linux/err.h> #include <linux/sysfs.h> #include <linux/hwmon.h> +#include <linux/mutex.h> #include <linux/spi/spi.h> -#include <asm/semaphore.h> + #define DRVNAME "lm70" struct lm70 { struct device *hwmon_dev; - struct semaphore sem; + struct mutex lock; }; /* sysfs hook function */ @@ -51,7 +52,7 @@ static ssize_t lm70_sense_temp(struct device *dev, s16 raw=0; struct lm70 *p_lm70 = dev_get_drvdata(&spi->dev); - if (down_interruptible(&p_lm70->sem)) + if (mutex_lock_interruptible(&p_lm70->lock)) return -ERESTARTSYS; /* @@ -83,7 +84,7 @@ static ssize_t lm70_sense_temp(struct device *dev, val = ((int)raw/32) * 250; status = sprintf(buf, "%d\n", val); /* millidegrees Celsius */ out: - up(&p_lm70->sem); + mutex_unlock(&p_lm70->lock); return status; } @@ -112,7 +113,7 @@ static int __devinit lm70_probe(struct spi_device *spi) if (!p_lm70) return -ENOMEM; - init_MUTEX(&p_lm70->sem); + mutex_init(&p_lm70->lock); /* sysfs hook */ p_lm70->hwmon_dev = hwmon_device_register(&spi->dev); |