[PATCH v3 09/15] media: blackfin: bfin_capture: make sure all buffers are returned on stop_streaming() callback

From: Lad Prabhakar
Date: Sat Feb 21 2015 - 13:42:40 EST

From: "Lad, Prabhakar" <prabhakar.csengg@xxxxxxxxx>

In start_streaming() callback the buffer is removed from the
dma_queue list and assigned to cur_frm, this patch makes sure
that is returned to vb2 core with VB2_BUF_STATE_ERROR flag.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
drivers/media/platform/blackfin/bfin_capture.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
index 012c271..3311d59 100644
--- a/drivers/media/platform/blackfin/bfin_capture.c
+++ b/drivers/media/platform/blackfin/bfin_capture.c
@@ -370,6 +370,9 @@ static void bcap_stop_streaming(struct vb2_queue *vq)
"stream off failed in subdev\n");

/* release all active buffers */
+ if (bcap_dev->cur_frm)
+ vb2_buffer_done(&bcap_dev->cur_frm->vb, VB2_BUF_STATE_ERROR);
while (!list_empty(&bcap_dev->dma_queue)) {
bcap_dev->cur_frm = list_entry(bcap_dev->dma_queue.next,
struct bcap_buffer, list);

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