From 2ff01c121c65a867d80016ba311aa286843565dc Mon Sep 17 00:00:00 2001
From: Georg Richter <georg@mariadb.com>
Date: Fri, 27 Nov 2020 18:33:06 +0100
Subject: [PATCH] Fix for CONC-518:

Check if mysql->options.extension was allocated before checking
async_context: this is handled by IS_MYSQL_ASYNC() macro now.
---
 libmariadb/mariadb_lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libmariadb/mariadb_lib.c b/libmariadb/mariadb_lib.c
index 3c883691..74703e0f 100644
--- a/libmariadb/mariadb_lib.c
+++ b/libmariadb/mariadb_lib.c
@@ -1701,7 +1701,7 @@ error:
   /* only free the allocated memory, user needs to call mysql_close */
   mysql_close_memory(mysql);
   if (!(client_flag & CLIENT_REMEMBER_OPTIONS) &&
-      !mysql->options.extension->async_context)
+      !(IS_MYSQL_ASYNC(mysql)))
     mysql_close_options(mysql);
   return(0);
 }