From ed0bc17bee591599c988df21b8d5a264f08eb885 Mon Sep 17 00:00:00 2001
From: Monty <monty@mariadb.org>
Date: Tue, 20 Dec 2016 13:03:45 +0200
Subject: Removed usage of my_hash_search() with uninitialized HASH.

- Not documented on intened usage
- Extra checking takes time for all HASH usage
---
 sql/item_func.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'sql/item_func.cc')

diff --git a/sql/item_func.cc b/sql/item_func.cc
index c38bdba05c2..8e912fe83c8 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -4302,7 +4302,8 @@ longlong Item_func_release_lock::val_int()
 
   User_level_lock *ull;
 
-  if (!(ull=
+  if (!my_hash_inited(&thd->ull_hash) ||
+      !(ull=
         (User_level_lock*) my_hash_search(&thd->ull_hash,
                                           ull_key.ptr(), ull_key.length())))
   {
-- 
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