From 41581254f8497a554f736bac805d02e5b06fda28 Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Tue, 4 Dec 2018 21:31:33 -0600
Subject: [PATCH] Fix a reference leak in store_result and use_result if result
 object initialization fails. (#298)

---
 MySQLdb/_mysql.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/MySQLdb/_mysql.c b/MySQLdb/_mysql.c
index ce88d03..66aba45 100644
--- a/MySQLdb/_mysql.c
+++ b/MySQLdb/_mysql.c
@@ -1865,8 +1865,10 @@ _mysql_ConnectionObject_store_result(
     if (!kwarglist) goto error;
     r = MyAlloc(_mysql_ResultObject, _mysql_ResultObject_Type);
     if (!r) goto error;
-    if (_mysql_ResultObject_Initialize(r, arglist, kwarglist))
+    if (_mysql_ResultObject_Initialize(r, arglist, kwarglist)) {
+        Py_DECREF(r);
         goto error;
+    }
     result = (PyObject *) r;
     if (!(r->result)) {
         Py_DECREF(result);
@@ -1924,9 +1926,11 @@ _mysql_ConnectionObject_use_result(
     if (!kwarglist) goto error;
     r = MyAlloc(_mysql_ResultObject, _mysql_ResultObject_Type);
     if (!r) goto error;
-    result = (PyObject *) r;
-    if (_mysql_ResultObject_Initialize(r, arglist, kwarglist))
+    if (_mysql_ResultObject_Initialize(r, arglist, kwarglist)) {
+        Py_DECREF(r);
         goto error;
+    }
+    result = (PyObject *) r;
     if (!(r->result)) {
         Py_DECREF(result);
         Py_INCREF(Py_None);