diff options
| author | Nadezda Lutovinova <lutovinova@ispras.ru> | 2021-08-11 19:18:16 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-10-05 09:34:37 +0200 |
| commit | fc41665498332ad394b7db37f23e9394096ddc71 (patch) | |
| tree | 66e23733bd83f3d0a4846817ac7e839e2d20157b /drivers/media/platform/rcar-vin/rcar-csi2.c | |
| parent | c52e7b855b33ff2a3af57b1b1d114720cd39ec7e (diff) | |
| download | linux-fc41665498332ad394b7db37f23e9394096ddc71.tar.bz2 | |
media: rcar-csi2: Add checking to rcsi2_start_receiver()
If rcsi2_code_to_fmt() return NULL, then null pointer dereference occurs
in the next cycle. That should not be possible now but adding checking
protects from future bugs.
The patch adds checking if format is NULL.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/platform/rcar-vin/rcar-csi2.c')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-csi2.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c index a4952711b7b1..d7f560e312d4 100644 --- a/drivers/media/platform/rcar-vin/rcar-csi2.c +++ b/drivers/media/platform/rcar-vin/rcar-csi2.c @@ -651,6 +651,8 @@ static int rcsi2_start_receiver(struct rcar_csi2 *priv) /* Code is validated in set_fmt. */ format = rcsi2_code_to_fmt(priv->mf.code); + if (!format) + return -EINVAL; /* * Enable all supported CSI-2 channels with virtual channel and |