[PyQt] if (sipParseErr == Py_None) Segfault

[Matteo Bertozzi]

 I've a segfault for a non return.

sipParseErr is NULL but is checked agains Py_None which is different
from NULL.

> PyObject *sipParseErr = NULL;
> 
> ...
> 
> Py_XDECREF(sipParseErr);
> 
> if (sipParseErr == Py_None)
>     return NULL;
> 
> /* Raise an exception if the arguments couldn't be parsed. */
> sipNoMethod(sipParseErr, sipName_TestSipErr, sipName___getitem__, NULL);

A simple solution is to check for (sipParseErr == NULL || sipParseErr == Py_None).
Or set PyObject *sipParseErr = Py_None;

-- 
Matteo Bertozzi - th30z at develer.com
Develer S.r.l. - http://www.develer.com/

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