diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2013-12-13 13:13:44 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-01-07 07:13:49 -0200 |
| commit | 79aeb3f3083a8a795467eae429cb2d6faf482f32 (patch) | |
| tree | e4cdd6d755b879d1de5eaf63a70d0354f499fdca /drivers/media/platform/davinci | |
| parent | c108e660f9196a4cebea79fbd650ed6850934fcc (diff) | |
[media] vb2: return ENOBUFS in start_streaming in case of too few buffers
This works together with the retry_start_streaming mechanism to allow userspace
to start streaming even if not all required buffers have been queued.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Tomasz Stanislawski <t.stanislaws@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Kamil Debski <k.debski@samsung.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/platform/davinci')
| -rw-r--r-- | drivers/media/platform/davinci/vpbe_display.c | 2 | ||||
| -rw-r--r-- | drivers/media/platform/davinci/vpif_capture.c | 2 | ||||
| -rw-r--r-- | drivers/media/platform/davinci/vpif_display.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c index eac472b5ae8..b02aba48882 100644 --- a/drivers/media/platform/davinci/vpbe_display.c +++ b/drivers/media/platform/davinci/vpbe_display.c @@ -347,7 +347,7 @@ static int vpbe_start_streaming(struct vb2_queue *vq, unsigned int count) /* If buffer queue is empty, return error */ if (list_empty(&layer->dma_queue)) { v4l2_err(&vpbe_dev->v4l2_dev, "buffer queue is empty\n"); - return -EINVAL; + return -ENOBUFS; } /* Get the next frame from the buffer queue */ layer->next_frm = layer->cur_frm = list_entry(layer->dma_queue.next, diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c index 52ac5e6c862..735ec47601a 100644 --- a/drivers/media/platform/davinci/vpif_capture.c +++ b/drivers/media/platform/davinci/vpif_capture.c @@ -277,7 +277,7 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) if (list_empty(&common->dma_queue)) { spin_unlock_irqrestore(&common->irqlock, flags); vpif_dbg(1, debug, "buffer queue is empty\n"); - return -EIO; + return -ENOBUFS; } /* Get the next frame from the buffer queue */ diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c index c31bcf129a5..9d115cdc6bd 100644 --- a/drivers/media/platform/davinci/vpif_display.c +++ b/drivers/media/platform/davinci/vpif_display.c @@ -239,7 +239,7 @@ static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count) if (list_empty(&common->dma_queue)) { spin_unlock_irqrestore(&common->irqlock, flags); vpif_err("buffer queue is empty\n"); - return -EIO; + return -ENOBUFS; } /* Get the next frame from the buffer queue */ |