device.swg in rbcdio-0.04

- old
+ new

@@ -1,7 +1,7 @@
 /* -*- c -*-
-  $Id: device.swg,v 1.12 2008/05/02 13:05:40 karl Exp $
+  $Id: device.swg,v 1.13 2008/11/30 15:45:23 rocky Exp $
 
   Copyright (C) 2006, 2007, 2008 Rocky Bernstein <rocky@gnu.org>
 
   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -29,12 +29,12 @@
 typedef char ** DeviceList_t;
 %}
 
 %typemap(out) DeviceList_t {   
     // $1 is of type DeviceList_t
-    char **p   = result;
+    char **p = result;
 
-    if (result) {
+    if (result && *result) {
       VALUE aDevices = rb_ary_new();
       for (p = $1; *p; p++) {
 	rb_ary_push(aDevices, rb_str_new2(*p));
       }
       cdio_free_device_list($1);