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media: sr030pc30: prevent array underflow in try_fmt()

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Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Dan Carpenter 2018-01-25 09:15:25 -05:00 committed by Mauro Carvalho Chehab
parent 8f0aa38292
commit bd0b5a35aa
1 changed files with 5 additions and 2 deletions
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7
drivers/media/i2c/sr030pc30.c
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@ -511,13 +511,16 @@ static int sr030pc30_get_fmt(struct v4l2_subdev *sd,
static const struct sr030pc30_format *try_fmt(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *mf)
{
int i = ARRAY_SIZE(sr030pc30_formats);
int i;
sr030pc30_try_frame_size(mf);
while (i--)
for (i = 0; i < ARRAY_SIZE(sr030pc30_formats); i++) {
if (mf->code == sr030pc30_formats[i].code)
break;
}
if (i == ARRAY_SIZE(sr030pc30_formats))
i = 0;
mf->code = sr030pc30_formats[i].code;