From 89b81a9a24c08221dc551d8572ef68e426afce3a Mon Sep 17 00:00:00 2001
From: Daniel Black <grooverdan@users.sourceforge.net>
Date: Sun, 2 Jul 2017 13:52:34 +1000
Subject: ma_pagecache: release lock in pagecache_read

make_lock_and_pin didn't release the lock so we should.

Found by Coverity (id 972095).
---
 storage/maria/ma_pagecache.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/storage/maria/ma_pagecache.c b/storage/maria/ma_pagecache.c
index 1a791d43034..bb9f5a03ad7 100644
--- a/storage/maria/ma_pagecache.c
+++ b/storage/maria/ma_pagecache.c
@@ -3474,6 +3474,7 @@ restart:
                             lock_to_read[lock].unlock_lock,
                             unlock_pin, FALSE))
       {
+        pagecache_pthread_mutex_unlock(&pagecache->cache_lock);
         DBUG_ASSERT(0);
         return (uchar*) 0;
       }
-- 
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