err = km->acquire(x, t, pol, XFRM_POLICY_OUT); if (!err) break;
acqret = km->acquire(x, t, pol, XFRM_POLICY_OUT); if (!acqret) err = acqret;
static int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol){	int err = -EINVAL;	struct xfrm_mgr *km;	read_lock(&xfrm_km_lock);	list_for_each_entry(km, &xfrm_km_list, list) {		err = km->acquire(x, t, pol, XFRM_POLICY_OUT);		if (!err)			break;	}	read_unlock(&xfrm_km_lock);	return err;}