[gnome-shell] network: don't fail if we can't read a connection associated with an active

[Giovanni Campagna <gcampagna src gnome org>]

commit 013b6aa44ae7a2791c7aaa1eb8844cb961fc2470
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Sat Jun 8 15:24:20 2013 +0200

    network: don't fail if we can't read a connection associated with an active
    
    It can happen in legitimate cases, such as a version incompatibility
    between NetworkManager and libnm-glib or a restricted permission.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=701849

 js/ui/status/network.js |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/status/network.js b/js/ui/status/network.js
index 747b5a0..923aaea 100644
--- a/js/ui/status/network.js
+++ b/js/ui/status/network.js
@@ -1711,8 +1711,12 @@ const NMApplet = new Lang.Class({
 
             // Ignore slave connections
             let connectionPath = activeConnections[i].connection;
-            let connection = this._settings.get_connection_by_path(connectionPath)
-            if (this._ignoreConnection(connection))
+            let connection = this._settings.get_connection_by_path(connectionPath);
+
+            // connection might be null, if libnm-glib fails to create
+            // the object due to version incompatibility, or if the
+            // connection is not visible to the current user
+            if (connection && this._ignoreConnection(connection))
                 continue;
 
             supportedConnections.push(activeConnections[i]);