From 0f0468a085b04a3e98ac093290c94f517b5edada Mon Sep 17 00:00:00 2001
From: Georg Richter <georg@mariadb.com>
Date: Mon, 23 Nov 2020 15:15:13 +0100
Subject: [PATCH] Fix for CONC-132: Fix leak in connection pool

When closing a connection pool the allocated buffer for pool_name
was not freed in a proper way.
---
 mariadb/mariadb_pooling.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mariadb/mariadb_pooling.c b/mariadb/mariadb_pooling.c
index ead21a8..8ede679 100644
--- a/mariadb/mariadb_pooling.c
+++ b/mariadb/mariadb_pooling.c
@@ -534,7 +534,8 @@ MrdbPool_close(MrdbPool *self)
         {
             PyDict_DelItemString(cnx_pool, self->pool_name);
         }
-        self->pool_name= NULL;
+        MARIADB_FREE_MEM(self->pool_name);
+        self->pool_name= 0;
     }
     pthread_mutex_unlock(&self->lock);
     pthread_mutex_destroy(&self->lock);