From: Andrey Grodzovsky <Andrey.Grodzovsky@xxxxxxx> ret value in amdgpu_dm_atomic_check was not rest to EINVAL after drm_atomic_add_affected_planes and by this making any subsequent validation failure pass when returning to atomic_check. v2: Add WARN_ON print for dc_commit_streams in amdgpu_dm_atomic_commit_tail since this should never fail. Change-Id: Ib12655cf88aa3e56c3f1f11456cc6ca11daaa26a Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky at amd.com> Acked-by: Harry Wentland <Harry.Wentland at amd.com> Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky at amd.com> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c index ede895515801..34ddbe331df2 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c @@ -2563,7 +2563,7 @@ void amdgpu_dm_atomic_commit_tail( } /* DC is optimized not to do anything if 'streams' didn't change. */ - dc_commit_streams(dm->dc, commit_streams, commit_streams_count); + WARN_ON(!dc_commit_streams(dm->dc, commit_streams, commit_streams_count)); list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc); @@ -3029,6 +3029,8 @@ int amdgpu_dm_atomic_check(struct drm_device *dev, ret = drm_atomic_add_affected_planes(state, crtc); if (ret) return ret; + + ret = -EINVAL; } for (i = 0; i < set_count; i++) { -- 2.11.0