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path: root/drivers/s390/scsi/zfcp_ccw.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_ccw.c')
-rw-r--r--drivers/s390/scsi/zfcp_ccw.c40
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;
-}