1 files changed, 37 insertions, 7 deletions

diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 58201e1ae478..e8fbeaeb5fbf 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -171,7 +171,7 @@ static int zfcp_scsi_eh_abort_handler(struct scsi_cmnd *scpnt)
                 write_unlock_irqrestore(&adapter->abort_lock, flags);
                 zfcp_scsi_dbf_event_abort("lte1", adapter, scpnt, NULL,
                                           old_req_id);
-                return SUCCESS;
+                return FAILED; /* completion could be in progress */
         }
         old_req->data = NULL;
 
@@ -486,10 +486,12 @@ static void zfcp_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout)
  */
 static void zfcp_scsi_dev_loss_tmo_callbk(struct fc_rport *rport)
 {
-        struct zfcp_port *port = rport->dd_data;
+        struct zfcp_port *port;
 
         write_lock_irq(&zfcp_data.config_lock);
-        port->rport = NULL;
+        port = rport->dd_data;
+        if (port)
+                port->rport = NULL;
         write_unlock_irq(&zfcp_data.config_lock);
 }
 
@@ -503,9 +505,18 @@ static void zfcp_scsi_dev_loss_tmo_callbk(struct fc_rport *rport)
  */
 static void zfcp_scsi_terminate_rport_io(struct fc_rport *rport)
 {
-        struct zfcp_port *port = rport->dd_data;
+        struct zfcp_port *port;
+
+        write_lock_irq(&zfcp_data.config_lock);
+        port = rport->dd_data;
+        if (port)
+                zfcp_port_get(port);
+        write_unlock_irq(&zfcp_data.config_lock);
 
-        zfcp_erp_port_reopen(port, 0, "sctrpi1", NULL);
+        if (port) {
+                zfcp_erp_port_reopen(port, 0, "sctrpi1", NULL);
+                zfcp_port_put(port);
+        }
 }
 
 static void zfcp_scsi_rport_register(struct zfcp_port *port)
@@ -534,8 +545,10 @@ static void zfcp_scsi_rport_register(struct zfcp_port *port)
 
 static void zfcp_scsi_rport_block(struct zfcp_port *port)
 {
-        if (port->rport)
-                fc_remote_port_delete(port->rport);
+        struct fc_rport *rport = port->rport;
+
+        if (rport)
+                fc_remote_port_delete(rport);
 }
 
 void zfcp_scsi_schedule_rport_register(struct zfcp_port *port)
@@ -583,6 +596,23 @@ void zfcp_scsi_rport_work(struct work_struct *work)
 }
 
 
+void zfcp_scsi_scan(struct work_struct *work)
+{
+        struct zfcp_unit *unit = container_of(work, struct zfcp_unit,
+                                              scsi_work);
+        struct fc_rport *rport;
+
+        flush_work(&unit->port->rport_work);
+        rport = unit->port->rport;
+
+        if (rport && rport->port_state == FC_PORTSTATE_ONLINE)
+                scsi_scan_target(&rport->dev, 0, rport->scsi_target_id,
+                                 scsilun_to_int((struct scsi_lun *)
+                                                &unit->fcp_lun), 0);
+
+        zfcp_unit_put(unit);
+}
+
 struct fc_function_template zfcp_transport_functions = {
         .show_starget_port_id = 1,
         .show_starget_port_name = 1,