5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sung Joon Kim <sungjoon.kim@xxxxxxx> commit 4ab68e168ae1695f7c04fae98930740aaf7c50fa upstream. [why & how] Need to make sure plane_state is initialized before accessing its members. Cc: Mario Limonciello <mario.limonciello@xxxxxxx> Cc: Alex Deucher <alexander.deucher@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Reviewed-by: Xi (Alex) Liu <xi.liu@xxxxxxx> Signed-off-by: Sung Joon Kim <sungjoon.kim@xxxxxxx> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> (cherry picked from commit 295d91cbc700651782a60572f83c24861607b648) Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/display/dc/core/dc_surface.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c @@ -154,7 +154,8 @@ const struct dc_plane_status *dc_plane_g if (pipe_ctx->plane_state != plane_state) continue; - pipe_ctx->plane_state->status.is_flip_pending = false; + if (pipe_ctx->plane_state) + pipe_ctx->plane_state->status.is_flip_pending = false; break; }
