From f7fbf79fb5682db0865754765f10584245d291e8 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Fri, 6 Oct 2023 13:50:24 -0500 Subject: [PATCH] drm/amd/display: Catch errors from drm_atomic_helper_suspend() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit drm_atomic_helper_suspend() can return PTR_ERR(), in which case the error gets stored into `dm->cached_state`. This can cause failures during resume. Catch the error during suspend and fail the suspend instead. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2362 Acked-by: Christian König Acked-by: Alex Deucher Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index c9a272d960a12..37d8c46ddfead 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2698,6 +2698,8 @@ static int dm_suspend(void *handle) WARN_ON(adev->dm.cached_state); adev->dm.cached_state = drm_atomic_helper_suspend(adev_to_drm(adev)); + if (IS_ERR(adev->dm.cached_state)) + return PTR_ERR(adev->dm.cached_state); s3_handle_mst(adev_to_drm(adev), true); -- 2.49.0