From 4bfe66048e97d29ab229519e9a821dbd4d929bd9 Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Wed, 24 Oct 2007 14:59:09 +0200 Subject: [PATCH] hwmon: (lm70) Convert semaphore to mutex Signed-off-by: Matthias Kaehlcke Acked-by: Jean Delvare Signed-off-by: Mark M. Hoffman --- drivers/hwmon/lm70.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c index dd366889ce..d435f00329 100644 --- a/drivers/hwmon/lm70.c +++ b/drivers/hwmon/lm70.c @@ -31,14 +31,15 @@ #include #include #include +#include #include -#include + #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); -- 2.39.5