PHP 5.4 compatibility

diff --git a/apps/dav/lib/carddav/addressbookimpl.php b/apps/dav/lib/carddav/addressbookimpl.php
index 240e40c9688040a31586a070eb9c59e8ed68d42c..734e68f207c9da40123f4d1cbbf5dbdc8917ef33 100644 (file)
--- a/apps/dav/lib/carddav/addressbookimpl.php
+++ b/apps/dav/lib/carddav/addressbookimpl.php
@@ -178,7 +178,8 @@ class AddressBookImpl implements IAddressBook {
        protected function createUid() {
                do {
                        $uid = $this->getUid();
-               } while (!empty($this->backend->getContact($uid . '.vcf')));
+                       $contact = $this->backend->getContact($uid . '.vcf');
+               } while (!empty($contact));
 
                return $uid;
        }