From: Juho Hämäläinen <juho.hamalainen@tieto.com>
Date: Fri, 24 May 2013 11:01:25 +0000 (+0300)
Subject: ucm: Fix segfault when device argument is missing from _sw{dev, mod}
X-Git-Tag: v1.0.27.2~8
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=14d653d7c374f9ba6319a7c5a8ee6f0bc3071304;p=alsa-lib.git

ucm: Fix segfault when device argument is missing from _sw{dev, mod}

Signed-off-by: Juho Hämäläinen <juho.hamalainen@tieto.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

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);