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>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c
index 7321c14868af..f4716ad7348a 100644
--- a/drivers/char/mbcs.c
+++ b/drivers/char/mbcs.c
@@ -347,7 +347,7 @@ do_mbcs_sram_dmaread(struct mbcs_soft *soft, uint64_t hostAddr,
 {
         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 @@ do_mbcs_sram_dmaread(struct mbcs_soft *soft, uint64_t hostAddr,
         *off += len;
 
 dmaread_exit:
-        up(&soft->dmareadlock);
+        mutex_unlock(&soft->dmareadlock);
 
         return rv;
 }
@@ -764,7 +764,7 @@ static int mbcs_probe(struct cx_dev *dev, const struct cx_device_id *id)
         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);