ccache_update: block labels

diff --git a/functions.php b/functions.php
index f3b2b1509e7b9e03f7c145afe5535cd35ee502e8..ce1813449718e3c1d181c90505b7016059d8ca36 100644 (file)
--- a/functions.php
+++ b/functions.php
@@ -5974,6 +5974,12 @@
        function ccache_update($link, $feed_id, $owner_uid, $is_cat = false, 
                $update_pcat = true) {
 
+               /* Labels are no currently supported */
+
+               if ($feed_id < 0) {
+                       return -1;
+               }
+
                $prev_unread = ccache_find($link, $feed_id, $owner_uid, $is_cat, true);
 
                if (!$is_cat) {