From 15e648f560190945bb9e1374634dd2e8db4cee05 Mon Sep 17 00:00:00 2001
From: Mark Pizzolato <mark@infocomm.com>
Date: Tue, 23 Oct 2012 14:40:56 -0700
Subject: [PATCH] sim_tmxr.c Fixed console behaviors the console is directed to
 a serial port.

---
 sim_tmxr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sim_tmxr.c b/sim_tmxr.c
index d83a63fc..1bd4d9e9 100644
--- a/sim_tmxr.c
+++ b/sim_tmxr.c
@@ -1950,7 +1950,8 @@ for (i = 0; i < mp->lines; i++) {  /* loop thru conn */
         }
     }
 
-sim_close_sock (mp->master, 1);                         /* close master socket */
+if (mp->master)
+    sim_close_sock (mp->master, 1);                     /* close master socket */
 mp->master = 0;
 free (mp->port);
 mp->port = NULL;