From 1b7243e8f51157103dcca33236163a191c8afd01 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Wed, 12 Jan 2011 21:55:11 +0100 Subject: hwmon: (fschmd) Drop useless mutex As discussed one year ago, the WDIOC_GETSUPPORT ioctl only needs a mutex because it operates on a static variable. There is no good reason to keep this variable static, so let's just make it non-static and drop the now useless mutex altogether. See the discussion at: http://marc.info/?l=lm-sensors&m=125563869402323&w=2 Signed-off-by: Jean Delvare Cc: Hans de Goede Acked-by: Guenter Roeck Acked-by: Arnd Bergmann Acked-by: Thomas Gleixner --- drivers/hwmon/fschmd.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/hwmon/fschmd.c') diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c index d4d4ca65d371..aa6d8b686f82 100644 --- a/drivers/hwmon/fschmd.c +++ b/drivers/hwmon/fschmd.c @@ -49,7 +49,6 @@ #include /* Addresses to scan */ -static DEFINE_MUTEX(watchdog_mutex); static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END }; /* Insmod parameters */ @@ -850,7 +849,7 @@ static ssize_t watchdog_write(struct file *filp, const char __user *buf, static long watchdog_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { - static struct watchdog_info ident = { + struct watchdog_info ident = { .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_CARDRESET, .identity = "FSC watchdog" @@ -858,7 +857,6 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd, unsigned long ar int i, ret = 0; struct fschmd_data *data = filp->private_data; - mutex_lock(&watchdog_mutex); switch (cmd) { case WDIOC_GETSUPPORT: ident.firmware_version = data->revision; @@ -915,7 +913,6 @@ static long watchdog_ioctl(struct file *filp, unsigned int cmd, unsigned long ar default: ret = -ENOTTY; } - mutex_unlock(&watchdog_mutex); return ret; } -- cgit