From: Serhiy Storchaka <storchaka@gmail.com>
Date: Fri, 28 Oct 2016 09:14:34 +0000 (+0300)
Subject: Fixed possible NULL decrefing.
X-Git-Tag: v2.7.13rc1~59
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4089b50080bd9ad2b769d3c42a610abe519c16c8;p=python

Fixed possible NULL decrefing.
---

diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index 2a652b06a2..46cc64d62e 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -1874,7 +1874,7 @@ var_perform(VarEvent *ev)
         PyErr_NormalizeException(&exc, &val, &tb);
         *(ev->exc_type) = exc;
         *(ev->exc_val) = val;
-        Py_DECREF(tb);
+        Py_XDECREF(tb);
     }
 
 }