MBCS: convert dmareadlock to mutex
MBCS: Convert the semaphore dmareadlock to the mutex API
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c
index 7321c14..f4716ad 100644
--- a/drivers/char/mbcs.c
+++ b/drivers/char/mbcs.c
@@ -347,7 +347,7 @@
{
int rv = 0;
- if (down_interruptible(&soft->dmareadlock))
+ if (mutex_lock_interruptible(&soft->dmareadlock))
return -ERESTARTSYS;
atomic_set(&soft->dmawrite_done, 0);
@@ -372,7 +372,7 @@
*off += len;
dmaread_exit:
- up(&soft->dmareadlock);
+ mutex_unlock(&soft->dmareadlock);
return rv;
}
@@ -764,7 +764,7 @@
init_waitqueue_head(&soft->algo_queue);
mutex_init(&soft->dmawritelock);
- init_MUTEX(&soft->dmareadlock);
+ mutex_init(&soft->dmareadlock);
mutex_init(&soft->algolock);
mbcs_getdma_init(&soft->getdma);