[media] saa7164: saa7164-buffer.c line 274 bugfix
Mark buffers free when the dvb dma engine stops.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/saa7164/saa7164-dvb.c b/drivers/media/video/saa7164/saa7164-dvb.c
index 2d21c01..b305a01 100644
--- a/drivers/media/video/saa7164/saa7164-dvb.c
+++ b/drivers/media/video/saa7164/saa7164-dvb.c
@@ -143,6 +143,8 @@
static int saa7164_dvb_stop_streaming(struct saa7164_port *port)
{
struct saa7164_dev *dev = port->dev;
+ struct saa7164_buffer *buf;
+ struct list_head *p, *q;
int ret;
dprintk(DBGLVL_DVB, "%s(port=%d)\n", __func__, port->nr);
@@ -151,6 +153,14 @@
ret = saa7164_dvb_acquire_port(port);
ret = saa7164_dvb_stop_port(port);
+ /* Mark the hardware buffers as free */
+ mutex_lock(&port->dmaqueue_lock);
+ list_for_each_safe(p, q, &port->dmaqueue.list) {
+ buf = list_entry(p, struct saa7164_buffer, list);
+ buf->flags = SAA7164_BUFFER_FREE;
+ }
+ mutex_unlock(&port->dmaqueue_lock);
+
return ret;
}