From 006eaa84aa25b6301fc75cdf2fbf2594e21b4271 Mon Sep 17 00:00:00 2001
From: Robin Appelman <icewind@owncloud.com>
Date: Wed, 20 May 2015 16:25:41 +0200
Subject: [PATCH] dont release shared lock if we dont have any
---
lib/private/lock/memcachelockingprovider.php | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/lib/private/lock/memcachelockingprovider.php b/lib/private/lock/memcachelockingprovider.php
index b2938e3a8ce..1334d007314 100644
--- a/lib/private/lock/memcachelockingprovider.php
+++ b/lib/private/lock/memcachelockingprovider.php
@@ -88,8 +88,10 @@ class MemcacheLockingProvider implements ILockingProvider {
*/
public function releaseLock($path, $type) {
if ($type === self::LOCK_SHARED) {
- $this->memcache->dec($path);
- $this->acquiredLocks['shared'][$path]--;
+ if (isset($this->acquiredLocks['shared'][$path]) and $this->acquiredLocks['shared'][$path] > 0) {
+ $this->memcache->dec($path);
+ $this->acquiredLocks['shared'][$path]--;
+ }
} else if ($type === self::LOCK_EXCLUSIVE) {
$this->memcache->cas($path, 'exclusive', 0);
unset($this->acquiredLocks['exclusive'][$path]);
--
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