Re: [PATCH 1/1] drm/mediatek: do not dereference NULL

[Eric Engestrom]

On Wed, May 18, 2016 at 10:59:50PM +0200, Heinrich Schuchardt wrote:
> After having verified that dpi is NULL we should not
> dereference it.
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@xxxxxx>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index d05ca79..3dbd00d 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -433,7 +433,7 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
>  	unsigned int factor;
>  
>  	if (!dpi) {
> -		dev_err(dpi->dev, "invalid argument\n");
> +		dev_err(NULL, "invalid argument\n");
>  		return -EINVAL;
>  	}
>  
> -- 
> 2.1.4

Seems obvious ^^
Reviewed-by: Eric Engestrom <eric.engestrom@xxxxxxxxxx>