On Tue, 14 Jul 2009, Olaf Weber wrote: > Julia Lawall writes: > > > From: Julia Lawall <julia@xxxxxxx> > > The result of container_of should not be NULL. In particular, in this case > > the argument to the enclosing function has passed though INIT_DELAYED_WORK, > > which dereferences it, implying that its container cannot be NULL. > > Given the defn of container_of() it seems clear that neither its input > pointer nor its result should ever be NULL. container_of just does pointer arithmetic. The result of that arithmetic can be NULL, ie if the argument was obtained from an expression of the form &x->f where x was NULL. But in principle, values should be checked for NULL beforehand. julia -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
