From: Tanu Kaskinen <tanuk@iki.fi>
Date: Sat, 26 Jan 2013 12:20:20 +0000 (+0200)
Subject: ucm: Set uc_mgr->ctl to NULL after closing it.
X-Git-Tag: v1.0.27~19
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=1629e2fbf3dc211eceb37f980e11e5babe1cefe4;p=alsa-lib.git

ucm: Set uc_mgr->ctl to NULL after closing it.

Fixes a double-free bug.

Signed-off-by: Tanu Kaskinen <tanuk@iki.fi>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/src/ucm/main.c b/src/ucm/main.c
index 0d7d8414..d8b8adaa 100644
--- a/src/ucm/main.c
+++ b/src/ucm/main.c
@@ -145,6 +145,7 @@ static int open_ctl(snd_use_case_mgr_t *uc_mgr,
 		free(uc_mgr->ctl_dev);
 		uc_mgr->ctl_dev = NULL;
 		snd_ctl_close(uc_mgr->ctl);
+		uc_mgr->ctl = NULL;
 	
 	}
 	err = snd_ctl_open(ctl, ctl_dev, 0);