From 20a3876a5729b0abde98b858887f20535cafa5d3 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Wed, 25 Jul 2018 13:31:46 +0300
Subject: [PATCH] bpo-34218: Fix a leak in _elementtree.c introduced in
 GH-6769.

---
 Modules/_elementtree.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Modules/_elementtree.c b/Modules/_elementtree.c
index 1500a6de270dcdc..02781d5d892b998 100644
--- a/Modules/_elementtree.c
+++ b/Modules/_elementtree.c
@@ -3178,6 +3178,7 @@ expat_start_doctype_handler(XMLParserObject *self,
                 "The doctype() method of XMLParser is ignored.  "
                 "Define doctype() method on the TreeBuilder target.",
                 1);
+        Py_DECREF(res);
     }
 
     Py_DECREF(doctype_name_obj);