[PATCH][staging-next] drivers: staging: cedrus: find ctx before dereferencing it ctx
Maxime Ripard
maxime.ripard at bootlin.com
Mon Nov 5 15:25:40 UTC 2018
On Fri, Nov 02, 2018 at 07:01:26PM +0000, Colin King wrote:
> From: Colin Ian King <colin.king at canonical.com>
>
> Currently if count is an invalid value the v4l2_info message will
> dereference a null ctx pointer to get the dev information. Fix
> this by finding ctx first and then checking for an invalid count,
> this way ctxt will be non-null hence avoiding the null pointer
> dereference.
>
> Detected by CoverityScan, CID#1475337 ("Explicit null dereferenced")
>
> Fixes: 50e761516f2b ("media: platform: Add Cedrus VPU decoder driver")
> Signed-off-by: Colin Ian King <colin.king at canonical.com>
Acked-by: Maxime Ripard <maxime.ripard at bootlin.com>
Thanks!
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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