[SCSI] zfcp: Remove SCSI devices when removing complete adapter

The common I/O layer can call remove a handler to inform zfcp
that a device disappeared. The handler zfcp_ccw_remove then
removes all unit, port and the adapter data structures. Removing
the units requires that the SCSI devices are removed first.
Signed-off-by: NChristof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: NSwen Schillig <swen@vnet.ibm.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>

drivers/s390/scsi/zfcp_ccw.c

@@ -120,6 +120,9 @@ zfcp_ccw_remove(struct ccw_device *ccw_device)
 
 	list_for_each_entry_safe(port, p, &adapter->port_remove_lh, list) {
 		list_for_each_entry_safe(unit, u, &port->unit_remove_lh, list) {
+			if (atomic_test_mask(ZFCP_STATUS_UNIT_REGISTERED,
+				&unit->status))
+				scsi_remove_device(unit->device);
 			zfcp_unit_dequeue(unit);
 		}
 		zfcp_port_dequeue(port);