From: Mauro Carvalho Chehab Date: Fri, 7 Dec 2018 11:43:03 +0000 (-0500) Subject: media: imx214: don't de-reference a NULL pointer X-Git-Tag: v5.15~6331^2~126 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=153d11cc530cb2a3045167253582d3d2849ad519;p=platform%2Fkernel%2Flinux-starfive.git media: imx214: don't de-reference a NULL pointer As warned by smatch: drivers/media/i2c/imx214.c:591 imx214_set_format() warn: variable dereferenced before check 'format' (see line 589) It turns that the code at imx214_set_format() has support for being called with the format being NULL. I've no idea why, as it is only called internally with the pointer set, and via subdev API (with should also set it). Also, the entire logic there depends on having format != NULL, so just remove the bogus broken support for a null format. Signed-off-by: Mauro Carvalho Chehab Reviewed-by: Hans Verkuil Reviewed-by: Ricardo Ribalda Delgado Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c index 9857e15..83e9961 100644 --- a/drivers/media/i2c/imx214.c +++ b/drivers/media/i2c/imx214.c @@ -588,12 +588,10 @@ static int imx214_set_format(struct v4l2_subdev *sd, __crop = __imx214_get_pad_crop(imx214, cfg, format->pad, format->which); - if (format) - mode = v4l2_find_nearest_size(imx214_modes, - ARRAY_SIZE(imx214_modes), width, height, - format->format.width, format->format.height); - else - mode = &imx214_modes[0]; + mode = v4l2_find_nearest_size(imx214_modes, + ARRAY_SIZE(imx214_modes), width, height, + format->format.width, + format->format.height); __crop->width = mode->width; __crop->height = mode->height;