diff options
| author |   Lad, Prabhakar <prabhakar.csengg@gmail.com> | 2015-03-08 11:40:38 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-02 18:11:09 -0300 |
| commit | 6692871a7c898ff05b33e58f1eab3ec1975bc894 (patch) | |
| tree | dec6e090f4a6535d2fc0ef46583a6e64cf9dd515 /drivers/media/platform/blackfin/bfin_capture.c | |
| parent | [media] media: blackfin: bfin_capture: drop buf_init() callback (diff) | |
| download | linux-dev-6692871a7c898ff05b33e58f1eab3ec1975bc894.tar.xz linux-dev-6692871a7c898ff05b33e58f1eab3ec1975bc894.zip | |
[media] media: blackfin: bfin_capture: release buffers in case start_streaming() call back fails
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@gmail.com>
Tested-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform/blackfin/bfin_capture.c')
| -rw-r--r-- | drivers/media/platform/blackfin/bfin_capture.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c index c6d8b95b91ff..2c720bc4cb8f 100644 --- a/drivers/media/platform/blackfin/bfin_capture.c +++ b/drivers/media/platform/blackfin/bfin_capture.c @@ -345,6 +345,7 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) { struct bcap_device *bcap_dev = vb2_get_drv_priv(vq); struct ppi_if *ppi = bcap_dev->ppi; + struct bcap_buffer *buf, *tmp; struct ppi_params params; int ret; @@ -352,7 +353,7 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) ret = v4l2_subdev_call(bcap_dev->sd, video, s_stream, 1); if (ret && (ret != -ENOIOCTLCMD)) { v4l2_err(&bcap_dev->v4l2_dev, "stream on failed in subdev\n"); - return ret; + goto err; } /* set ppi params */ @@ -391,7 +392,7 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) if (ret < 0) { v4l2_err(&bcap_dev->v4l2_dev, "Error in setting ppi params\n"); - return ret; + goto err; } /* attach ppi DMA irq handler */ @@ -399,12 +400,21 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count) if (ret < 0) { v4l2_err(&bcap_dev->v4l2_dev, "Error in attaching interrupt handler\n"); - return ret; + goto err; } reinit_completion(&bcap_dev->comp); bcap_dev->stop = false; + return 0; + +err: + list_for_each_entry_safe(buf, tmp, &bcap_dev->dma_queue, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED); + } + + return ret; } static void bcap_stop_streaming(struct vb2_queue *vq) |