Re: clockctl clock_settime bug

[enami tsugutomo <enami%sm.sony.co.jp@localhost>]

> !             if (args->tp) {
> !                     error = copyin(args->tp, &ts, sizeof ts);
> !                     if (error)
> !                             return (error);
> !                     error = clock_settime1(l->l_proc, args->clock_id,
> !                                 &ts, false);
> !             }

We shouldn't do the `if (args->tp)' test.  If NULL is passed, it is an
error isn't it?  Just let the copyin to DTRT.

enami.