From: jsg <jsg@openbsd.org>
Date: Fri, 12 Jul 2024 03:58:08 +0000 (+0000)
Subject: drm/amd/display: Skip finding free audio for unknown engine_id
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=52056ce1ddec96343b8079014d0ae15f2c0d903a;p=openbsd

drm/amd/display: Skip finding free audio for unknown engine_id

From Alex Hung
95ad20ee3c4efbb91f9a4ab08e070aa3697f5879 in linux-6.6.y/6.6.39
1357b2165d9ad94faa4c4a20d5e2ce29c2ff29c3 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c b/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c
index efdd9b134af..d0df3605231 100644
--- a/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c
+++ b/sys/dev/pci/drm/amd/display/dc/core/dc_resource.c
@@ -2385,6 +2385,9 @@ static struct audio *find_first_free_audio(
 {
 	int i, available_audio_count;
 
+	if (id == ENGINE_ID_UNKNOWN)
+		return NULL;
+
 	available_audio_count = pool->audio_count;
 
 	for (i = 0; i < available_audio_count; i++) {