From: Victor Stinner <victor.stinner@gmail.com>
Date: Tue, 16 Jul 2013 19:36:02 +0000 (+0200)
Subject: Issue #18408: Fix fileio_read() on _PyBytes_Resize() failure
X-Git-Tag: v3.4.0a1~188
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=85c761d3d3357615da15b332df36b307c70e2acb;p=python

Issue #18408: Fix fileio_read() on _PyBytes_Resize() failure

bytes is NULL on _PyBytes_Resize() failure
---

diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index efcc594140..5280991727 100644
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -739,7 +739,7 @@ fileio_read(fileio *self, PyObject *args)
 
     if (n != size) {
         if (_PyBytes_Resize(&bytes, n) < 0) {
-            Py_DECREF(bytes);
+            Py_CLEAR(bytes);
             return NULL;
         }
     }