From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
Date: Fri, 6 Oct 2017 15:11:41 -0400
Subject: drm/amd/display: ASSERT on dc_create_state failing.
Git-commit: 5771ec8fe8cb99c0db3115e81b4f69b1543c6982
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

dc_create_state() returns NULL on allocation failure. Raise warning when
that happens.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-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/amdgpu_dm/amdgpu_dm.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -702,6 +702,7 @@ int amdgpu_dm_display_resume(struct amdg
 	dc_release_state(cached_state->context);
 
 	cached_state->context = dc_create_state();
+	ASSERT(cached_state->context);
 	dc_resource_state_copy_construct_current(adev->dm.dc, cached_state->context);
 
 	for_each_new_crtc_in_state(adev->dm.cached_state, crtc, new_crtc_state, i) {