From 7d0888f97d115ea38d06f6bdcabb1674c29292de Mon Sep 17 00:00:00 2001
From: Kevin Larke <kevin@larke.org>
Date: Mon, 11 Aug 2014 11:43:52 -0700
Subject: [PATCH] cmMidiAlsa.c : cmMpFinalize() now checks for a NULL handle
 before call snd_seq_stop_queue().

---
 linux/cmMidiAlsa.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/linux/cmMidiAlsa.c b/linux/cmMidiAlsa.c
index 6994282..0dd5d1c 100644
--- a/linux/cmMidiAlsa.c
+++ b/linux/cmMidiAlsa.c
@@ -561,11 +561,12 @@ cmMpRC_t cmMpFinalize()
     }
 
     // stop the queue
-    if((arc = snd_seq_stop_queue(p->h,p->alsa_queue, NULL)) < 0 )
-    {
-      rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA queue stop failed.");
-      goto errLabel;
-    }
+    if( p->h != NULL )
+      if((arc = snd_seq_stop_queue(p->h,p->alsa_queue, NULL)) < 0 )
+      {
+        rc = _cmMpErrMsg(&p->err,kSysErrMpRC,arc,"ALSA queue stop failed.");
+        goto errLabel;
+      }
 
     // release the alsa queue
     if( p->alsa_queue != -1 )