From 206e00c933815d5d9976e9773b9280f15e18100e Mon Sep 17 00:00:00 2001
From: z3APA3A <3APA3A@3proxy.ru>
Date: Wed, 16 Sep 2015 00:54:34 +0300
Subject: [PATCH] avoid potential race condition on configuration reload

---
 src/auth.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/auth.c b/src/auth.c
index 98d5724..177a526 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -961,8 +961,11 @@ void hashadd(struct hashtable *ht, const unsigned char* name, unsigned long valu
         struct hashentry * he;
 	unsigned index;
 	
-	if(!value||!name||!ht->hashtable||!ht->hashempty) return;
 	pthread_mutex_lock(&hash_mutex);
+	if(!value||!name||!ht->hashtable||!ht->hashempty){
+	 pthread_mutex_unlock(&hash_mutex);
+	 return;
+	}
 	he = ht->hashempty;
 	ht->hashempty = ht->hashempty->next;
 	nametohash(name, he->hash);