From: Alex Hung <alex.hung@amd.com>
Date: Mon, 15 Jul 2024 16:37:28 +0000 (-0600)
Subject: drm/amd/display: Check stream_status before it is used
X-Git-Tag: microblaze-v6.13~18^2~21^2~275
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=58a8ee96f84d2c21abb85ad8c22d2bbdf59bd7a9;p=linux-2.6-microblaze.git

drm/amd/display: Check stream_status before it is used

[WHAT & HOW]
dc_state_get_stream_status can return null, and therefore null must be
checked before stream_status is used.

This fixes 1 NULL_RETURNS issue reported by Coverity.

Signed-off-by: Alex Hung <alex.hung@amd.com>
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 95d6e29d5e47..4c9e420742a2 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3748,7 +3748,7 @@ static void commit_planes_for_stream_fast(struct dc *dc,
 				surface_count,
 				stream,
 				context);
-	} else {
+	} else if (stream_status) {
 		build_dmub_cmd_list(dc,
 				srf_updates,
 				surface_count,