From 36ee982b61e5350d643cd7d8701d8f719b89509f Mon Sep 17 00:00:00 2001
From: Dan Williams <dcbw@redhat.com>
Date: Mon, 29 Jun 2009 22:50:16 -0400
Subject: [PATCH] sierra: ensure port is valid before doing stuff to it

---
 plugins/mm-modem-sierra.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/mm-modem-sierra.c b/plugins/mm-modem-sierra.c
index d3f12629..69a7af30 100644
--- a/plugins/mm-modem-sierra.c
+++ b/plugins/mm-modem-sierra.c
@@ -150,7 +150,7 @@ grab_port (MMModem *modem,
 
     port = mm_generic_gsm_grab_port (gsm, subsys, name, ptype, error);
 
-    if (MM_IS_SERIAL_PORT (port))
+    if (port && MM_IS_SERIAL_PORT (port))
         g_object_set (G_OBJECT (port), MM_PORT_CARRIER_DETECT, FALSE, NULL);
 
     return !!port;