V4L/DVB (7122): saa7134-empress: Remove back lock
videobuf functions at close() method already locks videobuf. It makes no sense
to keep the locking at empress close() method.
There is also a lock at open() method. I'm not sure if it is safe to remove the
locking there.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index 94b81e1..3d2ec30 100644
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -110,7 +110,6 @@
{
struct saa7134_dev *dev = file->private_data;
- mutex_lock(&dev->empress_tsq.vb_lock);
videobuf_stop(&dev->empress_tsq);
videobuf_mmap_free(&dev->empress_tsq);
dev->empress_users--;
@@ -122,7 +121,6 @@
saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6));
- mutex_unlock(&dev->empress_tsq.vb_lock);
return 0;
}