[PATCH] media: davinci: vpbe: release buffers in case start_streaming call back fails

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

this patch adds support to release the buffer by calling
vb2_buffer_done(), with state marked as VB2_BUF_STATE_QUEUED
if start_streaming() call back fails.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
---
 drivers/media/platform/davinci/vpbe_display.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c
index a9ad949..c8403ab 100644
--- a/drivers/media/platform/davinci/vpbe_display.c
+++ b/drivers/media/platform/davinci/vpbe_display.c
@@ -355,8 +355,17 @@ static int vpbe_start_streaming(struct vb2_queue *vq, unsigned int count)
 
 	/* Set parameters in OSD and VENC */
 	ret = vpbe_set_osd_display_params(fh->disp_dev, layer);
-	if (ret < 0)
+	if (ret < 0) {
+		struct vpbe_disp_buffer *buf, *tmp;
+
+		vb2_buffer_done(&layer->cur_frm->vb, VB2_BUF_STATE_QUEUED);
+		list_for_each_entry_safe(buf, tmp, &layer->dma_queue, list) {
+			list_del(&buf->list);
+			vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED);
+		}
+
 		return ret;
+	}
 
 	/*
 	 * if request format is yuv420 semiplanar, need to
-- 
1.7.9.5

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