From: Jaroslav Kysela <perex@perex.cz>
Date: Fri, 8 Jul 2022 20:00:34 +0000 (+0200)
Subject: ucm: add NULL check for card_name in open
X-Git-Tag: v1.2.8~13
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=d80616c0c1157a8332e8fce968fd778d98379eed;p=alsa-lib.git

ucm: add NULL check for card_name in open

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/src/ucm/main.c b/src/ucm/main.c
index ed6d1c94..30ab1e41 100644
--- a/src/ucm/main.c
+++ b/src/ucm/main.c
@@ -1518,7 +1518,7 @@ int snd_use_case_mgr_open(snd_use_case_mgr_t **uc_mgr,
 		mgr->suppress_nodev_errors = 1;
 	}
 
-	if (card_name[0] == '<' && card_name[1] == '<' && card_name[2] == '<')
+	if (card_name && card_name[0] == '<' && card_name[1] == '<' && card_name[2] == '<')
 		card_name = parse_open_variables(mgr, card_name);
 
 	err = uc_mgr_card_open(mgr);