| From | Ben Hutchings <> | Date | Sat, 08 Feb 2020 18:19:51 +0000 | Subject | [PATCH 3.16 052/148] media: exynos4-is: Fix recursive locking in isp_video_release() |
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3.16.82-rc1 review patch. If anyone has any objections, please let me know.
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From: Seung-Woo Kim <sw0312.kim@samsung.com>
commit 704c6c80fb471d1bb0ef0d61a94617d1d55743cd upstream.
>From isp_video_release(), &isp->video_lock is held and subsequent vb2_fop_release() tries to lock vdev->lock which is same with the previous one. Replace vb2_fop_release() with _vb2_fop_release() to fix the recursive locking.
Fixes: 1380f5754cb0 ("[media] videobuf2: Add missing lock held on vb2_fop_release") Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/media/platform/exynos4-is/fimc-isp-video.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/platform/exynos4-is/fimc-isp-video.c +++ b/drivers/media/platform/exynos4-is/fimc-isp-video.c @@ -322,7 +322,7 @@ static int isp_video_release(struct file ivc->streaming = 0; } - vb2_fop_release(file); + _vb2_fop_release(file, NULL); if (v4l2_fh_is_singular_file(file)) { fimc_pipeline_call(&ivc->ve, close);
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