From: Corbin McElhanney <corbin.mcelhanney@amd.com>
Date: Thu, 1 Jun 2017 16:54:53 -0400
Subject: drm/amd/display: Add assertion for invalid surface dimensions
Git-commit: 556ee1b75c94cd88710e2fa8c83e2dc22717fc4f
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Signed-off-by: Corbin McElhanney <corbin.mcelhanney@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1258,8 +1258,10 @@ void dc_update_surfaces_and_stream(struc
 			srf_updates->surface->src_rect.height == 0 &&
 			srf_updates->surface->dst_rect.width == 0 &&
 			srf_updates->surface->dst_rect.height == 0 &&
-			!srf_updates->scaling_info)
+			!srf_updates->scaling_info) {
+		ASSERT(false);
 		return;
+	}
 
 	update_type = dc_check_update_surfaces_for_stream(
 			dc, srf_updates, surface_count, stream_update, stream_status);