netbsd32_compat_50 inconsistency

[Maxime Villard <max%M00nBSD.net@localhost>]

Can someone explain me what this means?

sys/compat/netbsd32/netbsd32_compat_50.c:

256		(void) copyout(&atv,
257			       SCARG_P32(uap, olddelta),
258			       sizeof(atv));
259		if (error)
260			return (error);