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 <mchehab+samsung@kernel.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Ricardo Ribalda Delgado <ricardo@ribalda.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/i2c/imx214.c b/drivers/media/i2c/imx214.c
index 9857e151db467bf8785de3e61844a438d2773ed2..83e9961b0505d7d5270b04f3706a19c1a67726eb 100644 (file)
--- 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;