diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c
index f2a9a33b47a1f2b615609cb0b8a13b4361074e79..a15e3c7d21d3d80886702e3ec5b36e64cdb449ee 100644
--- a/drivers/firewire/fw-sbp2.c
+++ b/drivers/firewire/fw-sbp2.c
@@ -716,7 +716,11 @@ static void sbp2_login(struct work_struct *work)
 	sdev = __scsi_add_device(shost, 0, 0,
 				 scsilun_to_int(&eight_bytes_lun), lu);
 	if (IS_ERR(sdev)) {
-		sbp2_send_management_orb(lu, node_id, generation,
+		smp_rmb(); /* generation may have changed */
+		generation = device->generation;
+		smp_rmb(); /* node_id must not be older than generation */
+
+		sbp2_send_management_orb(lu, device->node_id, generation,
 				SBP2_LOGOUT_REQUEST, lu->login_id, NULL);
 		/*
 		 * Set this back to sbp2_login so we fall back and