From: Alex Rousskov <rousskov@measurement-factory.com>
Date: Fri, 27 Dec 2013 18:34:41 +0000 (-0700)
Subject: Check that StoreEntry lock does not go negative
X-Git-Tag: SQUID_3_5_0_1~444^2~7
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c47b98acba98f24086073c86071ea5711993cd59;p=thirdparty%2Fsquid.git

Check that StoreEntry lock does not go negative
which may happen if unlocked (and possibly deleted) entry is unlocked (again).
---

diff --git a/src/store.cc b/src/store.cc
index 3dcff35f79..3373b13557 100644
--- a/src/store.cc
+++ b/src/store.cc
@@ -542,6 +542,7 @@ StoreEntry::unlock(const char *context)
 {
     debugs(20, 3, (context ? context : "somebody") <<
            " unlocking key " << getMD5Text() << ' ' << *this);
+    assert(lock_count > 0);
     --lock_count;
 
     if (lock_count)