ibmvfc: prevent a potential deadlock

My static checker complains that we need to unlock on this path.  Seems
true.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index fc523c3..ab67ec4 100644 (file)
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -4722,6 +4722,8 @@ static void ibmvfc_rport_add_thread(struct work_struct *work)
                                        tgt_dbg(tgt, "Setting rport roles\n");
                                        fc_remote_port_rolechg(rport, tgt->ids.roles);
                                        put_device(&rport->dev);
+                               } else {
+                                       spin_unlock_irqrestore(vhost->host->host_lock, flags);
                                }
 
                                kref_put(&tgt->kref, ibmvfc_release_tgt);