sa1100fb: The semaphore ctrlr_sem is used as a mutex. Convert it to
the mutex API
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
--
diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c
index ab2b211..2dd1b8a 100644
--- a/drivers/video/sa1100fb.c
+++ b/drivers/video/sa1100fb.c
@@ -174,6 +174,7 @@
#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>
@@ -1107,7 +1108,7 @@ 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;
@@ -1192,7 +1193,7 @@ static void set_ctrlr_state(struct sa1100fb_info *fbi, u_int state)
}
break;
}
- up(&fbi->ctrlr_sem);
+ mutex_unlock(&fbi->ctrlr_lock);
}
/*
@@ -1444,7 +1445,7 @@ 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 f465b27..86831db 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;
--
Matthias Kaehlcke
Embedded Linux Engineer
Barcelona
Nothing is more despicable than respect based on fear
(Albert Camus)
.''`.
using free software / Debian GNU/Linux | http://debian.org : :' :
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