| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.3 007/180] media: venus: remove invalid compat_ioctl32 handler | Date | Mon, 16 Dec 2019 18:47:27 +0100 |
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From: Arnd Bergmann <arnd@arndb.de>
commit 4adc0423de92cf850d1ef5c0e7cb28fd7a38219e upstream.
v4l2_compat_ioctl32() is the function that calls into v4l2_file_operations->compat_ioctl32(), so setting that back to the same function leads to a trivial endless loop, followed by a kernel stack overrun.
Remove the incorrect assignment.
Cc: stable@vger.kernel.org Fixes: 7472c1c69138 ("[media] media: venus: vdec: add video decoder files") Fixes: aaaa93eda64b ("[media] media: venus: venc: add video encoder files") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/media/platform/qcom/venus/vdec.c | 3 --- drivers/media/platform/qcom/venus/venc.c | 3 --- 2 files changed, 6 deletions(-)
--- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -1104,9 +1104,6 @@ static const struct v4l2_file_operations .unlocked_ioctl = video_ioctl2, .poll = v4l2_m2m_fop_poll, .mmap = v4l2_m2m_fop_mmap, -#ifdef CONFIG_COMPAT - .compat_ioctl32 = v4l2_compat_ioctl32, -#endif }; static int vdec_probe(struct platform_device *pdev) --- a/drivers/media/platform/qcom/venus/venc.c +++ b/drivers/media/platform/qcom/venus/venc.c @@ -1230,9 +1230,6 @@ static const struct v4l2_file_operations .unlocked_ioctl = video_ioctl2, .poll = v4l2_m2m_fop_poll, .mmap = v4l2_m2m_fop_mmap, -#ifdef CONFIG_COMPAT - .compat_ioctl32 = v4l2_compat_ioctl32, -#endif }; static int venc_probe(struct platform_device *pdev)
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