From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Initialize on-stack modes with drm_mode_init() to guarantee no stack garbage in the list head, or that we aren't copying over another mode's list head. Based on the following cocci script, with manual fixups: @decl@ identifier M; expression E; @@ - struct drm_display_mode M = E; + struct drm_display_mode M; @@ identifier decl.M; expression decl.E; statement S, S1; @@ struct drm_display_mode M; ... when != S + drm_mode_init(&M, &E); + S1 @@ expression decl.E; @@ - &*E + E Cc: Harry Wentland <harry.wentland@xxxxxxx> Cc: Leo Li <sunpeng.li@xxxxxxx> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx> Cc: Alex Deucher <alexander.deucher@xxxxxxx> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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 d9940a3c64dd..7fa4b61bc5bf 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -5685,7 +5685,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, const struct drm_connector_state *con_state = dm_state ? &dm_state->base : NULL; struct dc_stream_state *stream = NULL; - struct drm_display_mode mode = *drm_mode; + struct drm_display_mode mode; struct drm_display_mode saved_mode; struct drm_display_mode *freesync_mode = NULL; bool native_mode_found = false; @@ -5699,6 +5699,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, struct dc_sink *sink = NULL; + drm_mode_init(&mode, drm_mode); memset(&saved_mode, 0, sizeof(saved_mode)); if (aconnector == NULL) { -- 2.37.4