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media: media/pci/ivtv: Variable vbi.type could be uninitialized if macro v4l2_subdev_call set __result an error code

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Inside function compress_sliced_buf(), variable vbi.type is
uninitialized if macro v4l2_subdev_call set __result an
error code. However, vbi.type is used in the if statement
without any check, which is potentially unsafe.

Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Yizhuo 2019-08-29 21:43:59 -03:00 committed by Mauro Carvalho Chehab
parent 6bf05f7599
commit 31218df77e
1 changed files with 1 additions and 1 deletions
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2
drivers/media/pci/ivtv/ivtv-vbi.c
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@ -325,7 +325,7 @@ static u32 compress_raw_buf(struct ivtv *itv, u8 *buf, u32 size)
static u32 compress_sliced_buf(struct ivtv *itv, u32 line, u8 *buf, u32 size, u8 sav)
{
u32 line_size = itv->vbi.sliced_decoder_line_size;
struct v4l2_decode_vbi_line vbi;
struct v4l2_decode_vbi_line vbi = {};
int i;
unsigned lines = 0;