only in patch2:
unchanged:
--- gnome-bluetooth-2.28.1.orig/lib/bluetooth-killswitch.c
+++ gnome-bluetooth-2.28.1/lib/bluetooth-killswitch.c
@@ -62,6 +62,7 @@
 struct _BluetoothKillswitchPrivate {
 	int fd;
 	GIOChannel *channel;
+	guint watch_id;
 	GList *killswitches; /* a GList of BluetoothIndKillswitch */
 	BluetoothKillswitchPrivate *priv;
 };
@@ -308,10 +309,10 @@
 	/* Setup monitoring */
 	priv->fd = fd;
 	priv->channel = g_io_channel_unix_new (priv->fd);
-	g_io_add_watch (priv->channel,
-			G_IO_IN | G_IO_HUP | G_IO_ERR,
-			(GIOFunc) event_cb,
-			killswitch);
+	priv->watch_id = g_io_add_watch (priv->channel,
+				G_IO_IN | G_IO_HUP | G_IO_ERR,
+				(GIOFunc) event_cb,
+				killswitch);
 
 	g_signal_emit (G_OBJECT (killswitch),
 		       signals[STATE_CHANGED],
@@ -323,6 +324,12 @@
 {
 	BluetoothKillswitchPrivate *priv = BLUETOOTH_KILLSWITCH_GET_PRIVATE (object);
 
+	/* cleanup monitoring */
+	g_source_remove(priv->watch_id);
+	g_io_channel_shutdown(priv->channel, FALSE, NULL);
+	g_io_channel_unref(priv->channel);
+	close(priv->fd);
+
 	g_list_foreach (priv->killswitches, (GFunc) g_free, NULL);
 	g_list_free (priv->killswitches);
 	priv->killswitches = NULL;