From 14d653d7c374f9ba6319a7c5a8ee6f0bc3071304 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Juho=20H=C3=A4m=C3=A4l=C3=A4inen?=
 <juho.hamalainen@tieto.com>
Date: Fri, 24 May 2013 14:01:25 +0300
Subject: [PATCH] ucm: Fix segfault when device argument is missing from
 _sw{dev, mod}
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Signed-off-by: Juho Hämäläinen <juho.hamalainen@tieto.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 src/ucm/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ucm/main.c b/src/ucm/main.c
index d38b7fad..04947282 100644
--- a/src/ucm/main.c
+++ b/src/ucm/main.c
@@ -1647,7 +1647,8 @@ int snd_use_case_set(snd_use_case_mgr_t *uc_mgr,
                 		goto __end;
                         }
                 } else {
-                        str = NULL;
+                        err = -EINVAL;
+                        goto __end;
                 }
                 if (check_identifier(identifier, "_swdev"))
                         err = switch_device(uc_mgr, str, value);
-- 
2.47.1