From 2eeb583245aab544b850b07c8b15e0625f3ede7b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Markus=20M=C3=A4kel=C3=A4?= <markus.makela@mariadb.com>
Date: Fri, 13 Mar 2020 09:30:43 +0200
Subject: [PATCH] MXS-2921: Fix memory leak in `alter maxscale`

The alteration of core parameters leaked the JSON object.
---
 server/core/config_runtime.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/server/core/config_runtime.cc b/server/core/config_runtime.cc
index d4af11044..d87773abb 100644
--- a/server/core/config_runtime.cc
+++ b/server/core/config_runtime.cc
@@ -3020,6 +3020,7 @@ bool runtime_alter_maxscale_from_json(json_t* new_json)
                 rval = false;
             }
         }
+        json_decref(old_json);
     }
 
     return rval;