From a44bfcfd529439c2ac05d0f300fd241b54a24af3 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Mon, 25 Feb 2013 21:28:51 +0400
Subject: [PATCH] make_lockfile: check if file was created successfully

---
 include/functions.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/functions.php b/include/functions.php
index 2b7b7c586..72d86e0a7 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -929,7 +929,7 @@
 	function make_lockfile($filename) {
 		$fp = fopen(LOCK_DIRECTORY . "/$filename", "w");
 
-		if (flock($fp, LOCK_EX | LOCK_NB)) {
+		if ($fp && flock($fp, LOCK_EX | LOCK_NB)) {
 			if (function_exists('posix_getpid')) {
 				fwrite($fp, posix_getpid() . "\n");
 			}