[PATCH AUTOSEL 5.10 25/26] drm/amd/display: Check null pointer before dereferencing se
From: Sasha Levin
Date: Fri Oct 04 2024 - 15:41:11 EST
From: Alex Hung <alex.hung@xxxxxxx>
[ 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>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 272252cd05001..f3fc9b44b4601 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(
--
2.43.0