Commit a8936060 authored Dec 03, 2025 by Richard Chiang Committed by Alex Deucher Jan 05, 2026

drm/amd/display: sink EDID data null check



[Why]
When sink EDID data pointer is NULL, it will cause an
unexpected error.

[How]
Check data pointer is not NULL first.

Reviewed-by: Yihan Zhu <yihan.zhu@amd.com>
Signed-off-by: Richard Chiang <Richard.Chiang@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 9862d2ac

drivers/gpu/drm/amd/display/dc/link/link_detection.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -623,6 +623,9 @@ static bool detect_dp(struct dc_link *link,

		static bool is_same_edid(struct dc_edid old_edid, struct dc_edid new_edid)
		{
		if (old_edid == NULL \|\| new_edid == NULL)
		return false;

		if (old_edid->length != new_edid->length)
		return false;