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Correct a crash when two successive unicode allocations fail with a MemoryError:

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the freelist contained half-initialized objects with freed pointers.

The comment
/* XXX UNREF/NEWREF interface should be more symmetrical */
was copied from tupleobject.c, and appears in some other places.
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This commit is contained in:
Amaury Forgeot d'Arc 2008-07-31 23:39:05 +00:00
parent ad9604003c
commit 06847b13ca
2 changed files with 17 additions and 1 deletions
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4
Objects/unicodeobject.c
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@ -315,7 +315,7 @@ PyUnicodeObject *_PyUnicode_New(Py_ssize_t length)
if ((unicode->length < length) &&
unicode_resize(unicode, length) < 0) {
PyObject_DEL(unicode->str);
goto onError;
unicode->str = NULL;
}
}
else {
@ -352,6 +352,8 @@ PyUnicodeObject *_PyUnicode_New(Py_ssize_t length)
return unicode;
onError:
/* XXX UNREF/NEWREF interface should be more symmetrical */
_Py_DEC_REFTOTAL;
_Py_ForgetReference((PyObject *)unicode);
PyObject_Del(unicode);
return NULL;