From d17427b7bd69644bbbd3ccb97dcb920ac50197a6 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Tue, 20 Oct 2015 18:21:48 +0300
Subject: [PATCH] Issue #25410: Fixed a memory leak in OrderedDict in the case
 when key's hash calculation fails.

---
 Objects/odictobject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Objects/odictobject.c b/Objects/odictobject.c
index 0044b329748..a0288841a42 100644
--- a/Objects/odictobject.c
+++ b/Objects/odictobject.c
@@ -648,11 +648,11 @@ _odict_add_new_node(PyODictObject *od, PyObject *key)
     Py_ssize_t i;
     _ODictNode *node;
 
-    Py_INCREF(key);
     hash = PyObject_Hash(key);
     if (hash == -1)
         return -1;
 
+    Py_INCREF(key);
     i = _odict_get_index(od, key);
     if (i < 0) {
         if (!PyErr_Occurred())