diff options
| author | Matthias Kaehlcke <matthias@kaehlcke.net> | 2008-07-24 08:31:16 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-24 21:47:37 +0400 |
| commit | 7951ac91c7d45b61f54f1cdabc24b52b40785de6 (patch) | |
| tree | faf56472419112ea4d82c8ea348e69cf3bf64ec4 /drivers | |
| parent | b91dbce56a8dbf312f6255d5121b295553d2b4db (diff) | |
| download | linux-7951ac91c7d45b61f54f1cdabc24b52b40785de6.tar.xz | |
sa1100fb: convert ctrlr_sem in a mutex
The semaphore ctrlr_sem is used as a mutex. Convert it to the mutex API
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/sa1100fb.c | 7 | ||||
| -rw-r--r-- | drivers/video/sa1100fb.h | 2 |
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c index 4a9f7e121807..78bcdbc3f484 100644 --- a/drivers/video/sa1100fb.c +++ b/drivers/video/sa1100fb.c @@ -175,6 +175,7 @@ #include <linux/cpufreq.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> +#include <linux/mutex.h> #include <asm/hardware.h> #include <asm/io.h> @@ -1108,7 +1109,7 @@ static void set_ctrlr_state(struct sa1100fb_info *fbi, u_int state) { u_int old_state; - down(&fbi->ctrlr_sem); + mutex_lock(&fbi->ctrlr_lock); old_state = fbi->state; @@ -1193,7 +1194,7 @@ static void set_ctrlr_state(struct sa1100fb_info *fbi, u_int state) } break; } - up(&fbi->ctrlr_sem); + mutex_unlock(&fbi->ctrlr_lock); } /* @@ -1445,7 +1446,7 @@ static struct sa1100fb_info * __init sa1100fb_init_fbinfo(struct device *dev) init_waitqueue_head(&fbi->ctrlr_wait); INIT_WORK(&fbi->task, sa1100fb_task); - init_MUTEX(&fbi->ctrlr_sem); + mutex_init(&fbi->ctrlr_lock); return fbi; } diff --git a/drivers/video/sa1100fb.h b/drivers/video/sa1100fb.h index f465b27ed860..86831db9a042 100644 --- a/drivers/video/sa1100fb.h +++ b/drivers/video/sa1100fb.h @@ -100,7 +100,7 @@ struct sa1100fb_info { volatile u_char state; volatile u_char task_state; - struct semaphore ctrlr_sem; + struct mutex ctrlr_lock; wait_queue_head_t ctrlr_wait; struct work_struct task; |