This is a note to let you know that I've just added the patch titled
drm/amd/display: Check null pointer before dereferencing se
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-check-null-pointer-before-dereferenc.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fac07a643e56ee4312052dc4e6e10eb2db8cea3b
Author: Alex Hung <alex.hung@xxxxxxx>
Date: Thu Aug 29 17:30:26 2024 -0600
drm/amd/display: Check null pointer before dereferencing se
[ Upstream commit ff599ef6970ee000fa5bc38d02fa5ff5f3fc7575 ]
[WHAT & HOW]
se is null checked previously in the same function, indicating
it might be null; therefore, it must be checked when used again.
This fixes 1 FORWARD_NULL issue reported by Coverity.
Acked-by: Alex Hung <alex.hung@xxxxxxx>
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@xxxxxxx>
Signed-off-by: Alex Hung <alex.hung@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 661907e8a7dec..84fb1377ec934 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1258,7 +1258,7 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc,
if (crtc_timing->pix_clk_100hz != pix_clk_100hz)
return false;
- if (!se->funcs->dp_get_pixel_format)
+ if (!se || !se->funcs->dp_get_pixel_format)
return false;
if (!se->funcs->dp_get_pixel_format(
