diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-10-25 19:38:43 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-10-25 19:38:52 +0200 |
| commit | 7d7a48b76012eeee25871e1d69104dec4b6d740f (patch) | |
| tree | c27e3d8bb2e80ad93c7b4a5c850e1ffbc090bcd2 /drivers/char/genrtc.c | |
| parent | e4072a9a9d186fe86293effe8828faa4be75b4a4 (diff) | |
| parent | 229aebb873e29726b91e076161649cf45154b0bf (diff) | |
Merge branch 'linus' into x86/urgent
Merge reason: We want to queue up a dependent fix.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/char/genrtc.c')
| -rw-r--r-- | drivers/char/genrtc.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c index b6c2cc167c11..f773a9dd14f3 100644 --- a/drivers/char/genrtc.c +++ b/drivers/char/genrtc.c @@ -52,7 +52,7 @@ #include <linux/init.h> #include <linux/poll.h> #include <linux/proc_fs.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/workqueue.h> #include <asm/uaccess.h> @@ -66,6 +66,7 @@ * ioctls. */ +static DEFINE_MUTEX(gen_rtc_mutex); static DECLARE_WAIT_QUEUE_HEAD(gen_rtc_wait); /* @@ -337,9 +338,9 @@ static long gen_rtc_unlocked_ioctl(struct file *file, unsigned int cmd, { int ret; - lock_kernel(); + mutex_lock(&gen_rtc_mutex); ret = gen_rtc_ioctl(file, cmd, arg); - unlock_kernel(); + mutex_unlock(&gen_rtc_mutex); return ret; } @@ -352,16 +353,16 @@ static long gen_rtc_unlocked_ioctl(struct file *file, unsigned int cmd, static int gen_rtc_open(struct inode *inode, struct file *file) { - lock_kernel(); + mutex_lock(&gen_rtc_mutex); if (gen_rtc_status & RTC_IS_OPEN) { - unlock_kernel(); + mutex_unlock(&gen_rtc_mutex); return -EBUSY; } gen_rtc_status |= RTC_IS_OPEN; gen_rtc_irq_data = 0; irq_active = 0; - unlock_kernel(); + mutex_unlock(&gen_rtc_mutex); return 0; } @@ -497,6 +498,7 @@ static const struct file_operations gen_rtc_fops = { .unlocked_ioctl = gen_rtc_unlocked_ioctl, .open = gen_rtc_open, .release = gen_rtc_release, + .llseek = noop_llseek, }; static struct miscdevice rtc_gen_dev = |