| From 4ab68e168ae1695f7c04fae98930740aaf7c50fa Mon Sep 17 00:00:00 2001 |
| From: Sung Joon Kim <sungjoon.kim@amd.com> |
| Date: Mon, 8 Jul 2024 19:29:49 -0400 |
| Subject: drm/amd/display: Check for NULL pointer |
| |
| From: Sung Joon Kim <sungjoon.kim@amd.com> |
| |
| commit 4ab68e168ae1695f7c04fae98930740aaf7c50fa upstream. |
| |
| [why & how] |
| Need to make sure plane_state is initialized |
| before accessing its members. |
| |
| Cc: Mario Limonciello <mario.limonciello@amd.com> |
| Cc: Alex Deucher <alexander.deucher@amd.com> |
| Cc: stable@vger.kernel.org |
| Reviewed-by: Xi (Alex) Liu <xi.liu@amd.com> |
| Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com> |
| Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> |
| Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
| (cherry picked from commit 295d91cbc700651782a60572f83c24861607b648) |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| 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; |
| } |
