[smuxi: 107/111] Frontend-GNOME: fixed NRE in Frontend.TryOpenChatLink() (closes: #953)

[Mirco M. M. Bauer <mmmbauer src gnome org>]

commit a53b49faf12f28ed8e0ee8431f82d649a8139b7e
Author: Mirco Bauer <meebey meebey net>
Date:   Fri Feb 14 19:36:03 2014 +0100

    Frontend-GNOME: fixed NRE in Frontend.TryOpenChatLink() (closes: #953)

 src/Frontend-GNOME/Frontend.cs |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/src/Frontend-GNOME/Frontend.cs b/src/Frontend-GNOME/Frontend.cs
index cb79c5c..d03d69f 100644
--- a/src/Frontend-GNOME/Frontend.cs
+++ b/src/Frontend-GNOME/Frontend.cs
@@ -1,7 +1,7 @@
 /*
  * Smuxi - Smart MUltipleXed Irc
  *
- * Copyright (c) 2005-2013 Mirco Bauer <meebey meebey net>
+ * Copyright (c) 2005-2014 Mirco Bauer <meebey meebey net>
  *
  * Full GPL License: <http://www.gnu.org/licenses/gpl.txt>
  *
@@ -855,6 +855,10 @@ namespace Smuxi.Frontend.Gnome
                     // try to find a server with this network name and connect to it
                     var serverSettings = new ServerListController(UserConfig);
                     server = serverSettings.GetServerByNetwork(linkNetwork);
+                    if (server == null) {
+                        // in case someone tried an unknown network
+                        return false;
+                    }
                     // ignore OnConnectCommands
                     server.OnConnectCommands = null;
                 } else if (!String.IsNullOrEmpty(linkHost)) {