From 577db2c9f0679df3762783a0e80a2e85f23ef562 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@haypocalc.com>
Date: Tue, 11 Oct 2011 22:12:48 +0200
Subject: PyUnicode_AsUnicodeCopy() now checks if PyUnicode_AsUnicode() failed

---
 Objects/unicodeobject.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index f734b49..cccab53 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -13775,13 +13775,16 @@ Py_UNICODE*
 PyUnicode_AsUnicodeCopy(PyObject *object)
 {
     PyUnicodeObject *unicode = (PyUnicodeObject *)object;
-    Py_UNICODE *copy;
+    Py_UNICODE *u, *copy;
     Py_ssize_t size;
 
     if (!PyUnicode_Check(unicode)) {
         PyErr_BadArgument();
         return NULL;
     }
+    u = PyUnicode_AsUnicode(object);
+    if (u == NULL)
+        return NULL;
     /* Ensure we won't overflow the size. */
     if (PyUnicode_GET_SIZE(unicode) > ((PY_SSIZE_T_MAX / sizeof(Py_UNICODE)) - 1)) {
         PyErr_NoMemory();
@@ -13794,7 +13797,7 @@ PyUnicode_AsUnicodeCopy(PyObject *object)
         PyErr_NoMemory();
         return NULL;
     }
-    memcpy(copy, PyUnicode_AS_UNICODE(unicode), size);
+    memcpy(copy, u, size);
     return copy;
 }
 
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