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| author | Prabhakar Lad <prabhakar.csengg@gmail.com> | 2014-09-06 17:26:51 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-09-22 01:16:39 +0200 |
| commit | c54d4a0b08bc4deddd3919d64f4121eaa487e28e (patch) | |
| tree | ed420b3e16d845edad031e48871d89de16473f7c /drivers/media/platform/davinci | |
| parent | [media] media: davinci: vpif_display: fix the check on suspend/resume callbacks (diff) | |
| download | linux-c54d4a0b08bc4deddd3919d64f4121eaa487e28e.tar.xz linux-c54d4a0b08bc4deddd3919d64f4121eaa487e28e.zip | |
[media] media: davinci: vpif_capture: fix the check on suspend/resume callbacks
It is possible to call STREAMON without having any buffers queued.
So vb2_is_streaming() can return true without start_streaming()
having been called. Only after at least one buffer has been
queued will start_streaming be called.
The check vb2_is_streaming() is incorrect as this would start
the DMA without having proper DMA pointers set up. this patch
uses vb2_start_streaming_called() instead to check is streaming
was called.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@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/davinci')
| -rw-r--r-- | drivers/media/platform/davinci/vpif_capture.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c index 881efcdbee87..3ccb26ff43c8 100644 --- a/drivers/media/platform/davinci/vpif_capture.c +++ b/drivers/media/platform/davinci/vpif_capture.c @@ -1596,7 +1596,7 @@ static int vpif_suspend(struct device *dev) ch = vpif_obj.dev[i]; common = &ch->common[VPIF_VIDEO_INDEX]; - if (!vb2_is_streaming(&common->buffer_queue)) + if (!vb2_start_streaming_called(&common->buffer_queue)) continue; mutex_lock(&common->lock); @@ -1630,7 +1630,7 @@ static int vpif_resume(struct device *dev) ch = vpif_obj.dev[i]; common = &ch->common[VPIF_VIDEO_INDEX]; - if (!vb2_is_streaming(&common->buffer_queue)) + if (!vb2_start_streaming_called(&common->buffer_queue)) continue; mutex_lock(&common->lock); |