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Subject: media: venus: remove invalid compat_ioctl32 handler Author: Arnd Bergmann arnd@arndb.de Date: Wed Nov 6 10:06:54 2019 +0100
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
drivers/media/platform/qcom/venus/vdec.c | 3 --- drivers/media/platform/qcom/venus/venc.c | 3 --- 2 files changed, 6 deletions(-)
---
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c index 3bd6d5030598..8feaf5daece9 100644 --- a/drivers/media/platform/qcom/venus/vdec.c +++ b/drivers/media/platform/qcom/venus/vdec.c @@ -1416,9 +1416,6 @@ 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) diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c index 501fb8ca55fb..453edf966d4f 100644 --- a/drivers/media/platform/qcom/venus/venc.c +++ b/drivers/media/platform/qcom/venus/venc.c @@ -1239,9 +1239,6 @@ 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)