fix memory leak in exception case

Cython/Utility/MemoryView.pyx

@@ -412,14 +412,11 @@ cdef class memoryview(object):
         else:
             item = <void *> array
 
+        try:
             if self.dtype_is_object:
                 (<PyObject **> item)[0] = <PyObject *> value
             else:
-            try:
                 self.assign_item_from_object(<char *> item, value)
-            except:
-                free(tmp)
-                raise
 
             # It would be easy to support indirect dimensions, but it's easier
             # to disallow :)
@@ -427,6 +424,7 @@ cdef class memoryview(object):
                 assert_direct_dimensions(self.view.suboffsets, self.view.ndim)
             slice_assign_scalar(dst_slice, dst.view.ndim, self.view.itemsize,
                                 item, self.dtype_is_object)
+        finally:
             free(tmp)
 
     cdef setitem_indexed(self, index, value):