From: Nicholas Kazlauskas Date: Thu, 10 Jan 2019 16:52:11 +0000 (-0500) Subject: drm/amd/display: Initialize stream_update to zero X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c448a53aaf9ef69942a8a4d6a9b7b191839d90c1;p=openwrt%2Fstaging%2Fblogic.git drm/amd/display: Initialize stream_update to zero [Why] The stream_update struct is left unitialized but DC will access its fields. This usually results in global state validation occur during any atomic commit with state->allow_modeset = true. [How] Initialize the struct to zero for every stream we check. Signed-off-by: Nicholas Kazlauskas Reviewed-by: David Francis Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- 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 387f1ba39de4..824e177fba9b 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -5773,7 +5773,6 @@ dm_determine_update_type_for_commit(struct dc *dc, struct dc_surface_update *updates; struct dc_plane_state *surface; - struct dc_stream_update stream_update; enum surface_update_type update_type = UPDATE_TYPE_FAST; updates = kcalloc(MAX_SURFACES, sizeof(*updates), GFP_KERNEL); @@ -5787,6 +5786,8 @@ dm_determine_update_type_for_commit(struct dc *dc, } for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { + struct dc_stream_update stream_update = { 0 }; + new_dm_crtc_state = to_dm_crtc_state(new_crtc_state); old_dm_crtc_state = to_dm_crtc_state(old_crtc_state); num_plane = 0;