From 98741574d9b1566555149c753b3ab5a020337ce9 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Fri, 7 Feb 2014 13:24:11 +0100
Subject: [PATCH] Always return a valid array/iterator

---
 plugins/libkolab/lib/kolab_storage_cache.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugins/libkolab/lib/kolab_storage_cache.php b/plugins/libkolab/lib/kolab_storage_cache.php
index f2612204..0fb7b6ed 100644
--- a/plugins/libkolab/lib/kolab_storage_cache.php
+++ b/plugins/libkolab/lib/kolab_storage_cache.php
@@ -453,7 +453,7 @@ class kolab_storage_cache
             );
 
             if ($this->db->is_error($sql_result)) {
-                return null;
+                return $result;
             }
 
             while ($sql_arr = $this->db->fetch_assoc($sql_result)) {
@@ -483,7 +483,7 @@ class kolab_storage_cache
             }
 
             if ($index->is_error()) {
-                return null;
+                return $result;
             }
 
             $index  = $index->get();