From: Victor Stinner <victor.stinner@gmail.com>
Date: Tue, 5 Sep 2017 21:30:16 +0000 (+0200)
Subject: _pickle: Fix whichmodule() (#3358)
X-Git-Tag: v3.7.0a1~147
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=af46eb8d5f23c6f4e69a6a1f579fac8c2250b7c2;p=python

_pickle: Fix whichmodule() (#3358)

_PyUnicode_FromId() can return NULL: replace Py_INCREF() with
Py_XINCREF().

Fix coverity report: CID 1417269.
---

diff --git a/Modules/_pickle.c b/Modules/_pickle.c
index 2a3e73988d..25255368a1 100644
--- a/Modules/_pickle.c
+++ b/Modules/_pickle.c
@@ -1705,7 +1705,7 @@ whichmodule(PyObject *global, PyObject *dotted_path)
 
     /* If no module is found, use __main__. */
     module_name = _PyUnicode_FromId(&PyId___main__);
-    Py_INCREF(module_name);
+    Py_XINCREF(module_name);
     return module_name;
 }