From: Daniel Stone <daniels@collabora.com>
Date: Fri, 18 May 2018 14:47:03 +0100
Subject: drm/mtk: Remove impossible internal error
Git-commit: c734f496770801f97ae1a59607634b972b002cdf
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

We cannot create a framebuffer with no objects, so there's no point
testing for it.

v2: Remove the error entirely. (Sean, CK, Thierry)

Signed-off-by: Daniel Stone <daniels@collabora.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518134705.12533-1-daniels@collabora.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_plane.c |    5 -----
 1 file changed, 5 deletions(-)

--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -95,11 +95,6 @@ static int mtk_plane_atomic_check(struct
 	if (!fb)
 		return 0;
 
-	if (!mtk_fb_get_gem_obj(fb)) {
-		DRM_DEBUG_KMS("buffer is null\n");
-		return -EFAULT;
-	}
-
 	if (!state->crtc)
 		return 0;