The imx_media_pipeline_pad() function return NULL pointers on error, it
never returns error pointers.
Fixes: 3ef46bc97ca2 ("media: staging/imx: Improve pipeline searching")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
 
        /* get source pad of entity directly upstream from src */
        pad = imx_media_pipeline_pad(src, 0, 0, true);
-       if (IS_ERR(pad))
-               return PTR_ERR(pad);
+       if (!pad)
+               return -ENODEV;
 
        sd = media_entity_to_v4l2_subdev(pad->entity);
 
 
 skip_video_mux:
        /* get source pad of entity directly upstream from src */
        pad = imx_media_pipeline_pad(src, 0, 0, true);
-       if (IS_ERR(pad))
-               return PTR_ERR(pad);
+       if (!pad)
+               return -ENODEV;
 
        sd = media_entity_to_v4l2_subdev(pad->entity);