diff options
| -rw-r--r-- | drivers/media/video/cx18/cx18-dvb.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-dvb.c b/drivers/media/video/cx18/cx18-dvb.c index 0ad5b63d27fe..0ae2c2e1eab5 100644 --- a/drivers/media/video/cx18/cx18-dvb.c +++ b/drivers/media/video/cx18/cx18-dvb.c @@ -260,6 +260,7 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) mutex_lock(&stream->dvb.feedlock); if (stream->dvb.feeding++ == 0) { CX18_DEBUG_INFO("Starting Transport DMA\n"); + mutex_lock(&cx->serialize_lock); set_bit(CX18_F_S_STREAMING, &stream->s_flags); ret = cx18_start_v4l2_encode_stream(stream); if (ret < 0) { @@ -268,6 +269,7 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) if (stream->dvb.feeding == 0) clear_bit(CX18_F_S_STREAMING, &stream->s_flags); } + mutex_unlock(&cx->serialize_lock); } else ret = 0; mutex_unlock(&stream->dvb.feedlock); @@ -291,7 +293,9 @@ static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed) mutex_lock(&stream->dvb.feedlock); if (--stream->dvb.feeding == 0) { CX18_DEBUG_INFO("Stopping Transport DMA\n"); + mutex_lock(&cx->serialize_lock); ret = cx18_stop_v4l2_encode_stream(stream, 0); + mutex_unlock(&cx->serialize_lock); } else ret = 0; mutex_unlock(&stream->dvb.feedlock); |