Change cAccessControl's PermissionRole deallocator to handle the case where

the object pointers aren't initialized (because the constructor was called
with an invalid number of arguments)  This just amounts to using the XDECREF
macro rather than DECREF.

lib/python/AccessControl/cAccessControl.c

@@ -36,7 +36,7 @@
   USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
   DAMAGE.
 
-  $Id: cAccessControl.c,v 1.15 2002/03/21 15:48:54 htrd Exp $
+  $Id: cAccessControl.c,v 1.16 2002/04/12 15:21:47 matt Exp $
 
   If you have questions regarding this software,
   contact:
@@ -1519,13 +1519,13 @@ static PyObject *PermissionRole_of(PermissionRole *self, PyObject *args) {
 
 static void PermissionRole_dealloc(PermissionRole *self) {
 
-	Py_DECREF(self->__name__);
+	Py_XDECREF(self->__name__);
 
-	Py_DECREF(self->_p);
+	Py_XDECREF(self->_p);
 
-	Py_DECREF(self->__roles__);
+	Py_XDECREF(self->__roles__);
 
-	Py_DECREF(self->ob_type);	/* Extensionclass init incref'd */
+	Py_XDECREF(self->ob_type);	/* Extensionclass init incref'd */
 
 	PyMem_DEL(self);  
 }
@@ -2097,7 +2097,7 @@ void initcAccessControl(void) {
 
 	module = Py_InitModule3("cAccessControl",
 		cAccessControl_methods,
-		"$Id: cAccessControl.c,v 1.15 2002/03/21 15:48:54 htrd Exp $\n");
+		"$Id: cAccessControl.c,v 1.16 2002/04/12 15:21:47 matt Exp $\n");
 
 	aq_init(); /* For Python <= 2.1.1, aq_init() should be after
                       Py_InitModule(). */