From 1e8a374f2f26edbe68d2fc3c049ef7ccdf855d56 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 10 Jun 2009 23:22:12 +0200
Subject: [PATCH] alsa: fix bad memory access for devices that lack a mixer

---
 src/modules/alsa/alsa-util.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/modules/alsa/alsa-util.c b/src/modules/alsa/alsa-util.c
index c03866c..b273625 100644
--- a/src/modules/alsa/alsa-util.c
+++ b/src/modules/alsa/alsa-util.c
@@ -1289,8 +1289,10 @@ int pa_alsa_find_mixer_and_elem(
     }
 
     if (!e) {
-        if (ctl_device)
+        if (ctl_device) {
             pa_xfree(*ctl_device);
+            *ctl_device = NULL;
+        }
 
         snd_mixer_close(m);
         return -1;
-- 
2.7.4