From d59033991acc3299af04ea4d77120aed43e6b7b4 Mon Sep 17 00:00:00 2001 From: Xiaojie Yuan Date: Tue, 4 Jul 2017 14:21:58 +0800 Subject: [PATCH 0549/4131] drm/amd/display: Fix misuse of plane state destroy helper drm_plane_state is subclassed by dm_plane_state, so atomic driver should use __drm_atomic_helper_plane_destroy_state() to destroy a state. drm_atomic_helper_plane_destroy_state() frees drm_plane_state which is allocated inside dm_plane_state, this is problematic. Fixes: 95ae03a ("drm/amd/display: Create dm_plane_state.") Signed-off-by: Xiaojie Yuan Reviewed-by: Andrey Grodzovsky Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c | 3 ++- 1 file changed, 2 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 5a87f1b..f5079ae 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 @@ -1574,7 +1574,8 @@ void dm_drm_plane_destroy_state(struct drm_plane *plane, dc_surface_release(dc_surface); } - drm_atomic_helper_plane_destroy_state(plane, state); + __drm_atomic_helper_plane_destroy_state(state); + kfree(dm_plane_state); } static const struct drm_plane_funcs dm_plane_funcs = { -- 2.7.4