Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (34 commits)
  [SCSI] qla2xxx: Fix NULL ptr deref bug in fail path during queue create
  [SCSI] st: fix possible memory use after free after MTSETBLK ioctl
  [SCSI] be2iscsi: Moving to pci_pools v3
  [SCSI] libiscsi: iscsi_session_setup to allow for private space
  [SCSI] be2iscsi: add 10Gbps iSCSI - BladeEngine 2 driver
  [SCSI] zfcp: Fix hang when offlining device with offline chpid
  [SCSI] zfcp: Fix lockdep warning when offlining device with offline chpid
  [SCSI] zfcp: Fix oops during shutdown of offline device
  [SCSI] zfcp: Fix initial device and cfdc for delayed adapter allocation
  [SCSI] zfcp: correctly initialize unchained requests
  [SCSI] mpt2sas: Bump version 02.100.03.00
  [SCSI] mpt2sas: Support dev remove when phy status is MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT
  [SCSI] mpt2sas: Timeout occurred within the HANDSHAKE logic while waiting on firmware to ACK.
  [SCSI] mpt2sas: Call init_completion on a per request basis.
  [SCSI] mpt2sas: Target Reset will be issued from Interrupt context.
  [SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to support multiple TM
  [SCSI] mpt2sas: Copyright change to 2009.
  [SCSI] mpt2sas: Added mpi2_history.txt for MPI2 headers.
  [SCSI] mpt2sas: Update driver to MPI2 REV K headers.
  [SCSI] bfa: Brocade BFA FC SCSI driver
  ...

1 files changed, 14 insertions, 26 deletions

diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 0c90f8e7160..e08339428ec 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -102,6 +102,14 @@ static void zfcp_ccw_remove(struct ccw_device *ccw_device)
 	adapter = dev_get_drvdata(&ccw_device->dev);
 	if (!adapter)
 		goto out;
+	mutex_unlock(&zfcp_data.config_mutex);
+
+	cancel_work_sync(&adapter->scan_work);
+
+	mutex_lock(&zfcp_data.config_mutex);
+
+	/* this also removes the scsi devices, so call it first */
+	zfcp_adapter_scsi_unregister(adapter);
 
 	write_lock_irq(&zfcp_data.config_lock);
 	list_for_each_entry_safe(port, p, &adapter->port_list_head, list) {
@@ -117,11 +125,8 @@ static void zfcp_ccw_remove(struct ccw_device *ccw_device)
 	write_unlock_irq(&zfcp_data.config_lock);
 
 	list_for_each_entry_safe(port, p, &port_remove_lh, list) {
-		list_for_each_entry_safe(unit, u, &unit_remove_lh, list) {
-			if (unit->device)
-				scsi_remove_device(unit->device);
+		list_for_each_entry_safe(unit, u, &unit_remove_lh, list)
 			zfcp_unit_dequeue(unit);
-		}
 		zfcp_port_dequeue(port);
 	}
 	wait_event(adapter->remove_wq, atomic_read(&adapter->refcount) == 0);
@@ -192,13 +197,9 @@ static int zfcp_ccw_set_offline(struct ccw_device *ccw_device)
 
 	mutex_lock(&zfcp_data.config_mutex);
 	adapter = dev_get_drvdata(&ccw_device->dev);
-	if (!adapter)
-		goto out;
-
 	zfcp_erp_adapter_shutdown(adapter, 0, "ccsoff1", NULL);
 	zfcp_erp_wait(adapter);
 	mutex_unlock(&zfcp_data.config_mutex);
-out:
 	return 0;
 }
 
@@ -253,13 +254,17 @@ static void zfcp_ccw_shutdown(struct ccw_device *cdev)
 
 	mutex_lock(&zfcp_data.config_mutex);
 	adapter = dev_get_drvdata(&cdev->dev);
+	if (!adapter)
+		goto out;
+
 	zfcp_erp_adapter_shutdown(adapter, 0, "ccshut1", NULL);
 	zfcp_erp_wait(adapter);
 	zfcp_erp_thread_kill(adapter);
+out:
 	mutex_unlock(&zfcp_data.config_mutex);
 }
 
-static struct ccw_driver zfcp_ccw_driver = {
+struct ccw_driver zfcp_ccw_driver = {
 	.owner       = THIS_MODULE,
 	.name        = "zfcp",
 	.ids         = zfcp_ccw_device_id,
@@ -284,20 +289,3 @@ int __init zfcp_ccw_register(void)
 {
 	return ccw_driver_register(&zfcp_ccw_driver);
 }
-
-/**
- * zfcp_get_adapter_by_busid - find zfcp_adapter struct
- * @busid: bus id string of zfcp adapter to find
- */
-struct zfcp_adapter *zfcp_get_adapter_by_busid(char *busid)
-{
-	struct ccw_device *ccw_device;
-	struct zfcp_adapter *adapter = NULL;
-
-	ccw_device = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
-	if (ccw_device) {
-		adapter = dev_get_drvdata(&ccw_device->dev);
-		put_device(&ccw_device->dev);
-	}
-	return adapter;
-}