[PATCH 05/10] drm/mediatek: plane_state->fb iff plane_state->crtc

[CK Hu]

Hi, Daniel:

On Fri, 2019-12-13 at 18:26 +0100, Daniel Vetter wrote:
> Checking both is one too much, so wrap a WARN_ON around it to stope
> the copypasta.

Even though I don't know what is copypasta,

Acked-by: CK Hu <ck.hu at mediatek.com>

> 
> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
> Cc: CK Hu <ck.hu at mediatek.com>
> Cc: Philipp Zabel <p.zabel at pengutronix.de>
> Cc: Matthias Brugger <matthias.bgg at gmail.com>
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-mediatek at lists.infradead.org
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_plane.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> index 540ef2faa40a..f0b0325381e0 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> @@ -94,7 +94,7 @@ static int mtk_plane_atomic_check(struct drm_plane *plane,
>  	if (!fb)
>  		return 0;
>  
> -	if (!state->crtc)
> +	if (WARN_ON(!state->crtc))
>  		return 0;
>  
>  	ret = mtk_drm_crtc_plane_check(state->crtc, plane,