diff options
Diffstat (limited to 'drivers/hwmon/w83793.c')
| -rw-r--r-- | drivers/hwmon/w83793.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c index 697202e2789..8e540ada47d 100644 --- a/drivers/hwmon/w83793.c +++ b/drivers/hwmon/w83793.c @@ -35,7 +35,6 @@ #include <linux/slab.h> #include <linux/i2c.h> #include <linux/hwmon.h> -#include <linux/smp_lock.h> #include <linux/hwmon-vid.h> #include <linux/hwmon-sysfs.h> #include <linux/err.h> @@ -52,6 +51,7 @@ #define WATCHDOG_TIMEOUT 2 /* 2 minute default timeout */ /* Addresses to scan */ +static DEFINE_MUTEX(watchdog_mutex); static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; @@ -1333,7 +1333,7 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd, int val, ret = 0; struct w83793_data *data = filp->private_data; - lock_kernel(); + mutex_lock(&watchdog_mutex); switch (cmd) { case WDIOC_GETSUPPORT: if (!nowayout) @@ -1387,7 +1387,7 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd, default: ret = -ENOTTY; } - unlock_kernel(); + mutex_unlock(&watchdog_mutex); return ret; } |