[network-manager-openvpn] core: don't clean up management socket if it wasn't set up in the first place

[Dan Williams <dcbw src gnome org>]

commit 70b6a32807cc67cf1fb208d7961d940647348f2b
Author: Dan Williams <dcbw redhat com>
Date:   Mon Apr 4 18:33:33 2011 -0500

    core: don't clean up management socket if it wasn't set up in the first place

 src/nm-openvpn-service.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/src/nm-openvpn-service.c b/src/nm-openvpn-service.c
index 105a163..de86001 100644
--- a/src/nm-openvpn-service.c
+++ b/src/nm-openvpn-service.c
@@ -291,9 +291,12 @@ nm_openvpn_disconnect_management_socket (NMOpenvpnPlugin *plugin)
 	if (!io_data)
 		return;
 
-	g_source_remove (io_data->socket_channel_eventid);
-	g_io_channel_shutdown (io_data->socket_channel, FALSE, NULL);
-	g_io_channel_unref (io_data->socket_channel);
+	if (io_data->socket_channel_eventid)
+		g_source_remove (io_data->socket_channel_eventid);
+	if (io_data->socket_channel) {
+		g_io_channel_shutdown (io_data->socket_channel, FALSE, NULL);
+		g_io_channel_unref (io_data->socket_channel);
+	}
 
 	g_free (io_data->username);
 	g_free (io_data->proxy_username);