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media: venus: remove invalid compat_ioctl32 handler

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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: 7472c1c691 ("[media] media: venus: vdec: add video decoder files")
Fixes: aaaa93eda6 ("[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>
This commit is contained in:
Arnd Bergmann 2019-11-06 10:06:54 +01:00 • committed by Greg Kroah-Hartman
commit dea5cc44e0
2 changed files with 0 additions and 6 deletions
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3
drivers/media/platform/qcom/venus/vdec.c
View file

@ -1412,9 +1412,6 @@ static const struct v4l2_file_operations vdec_fops = {
.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)

3
drivers/media/platform/qcom/venus/venc.c
View file

@ -1235,9 +1235,6 @@ static const struct v4l2_file_operations venc_fops = {
.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)