From: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
zfcp_unit_release calls put_device on the port. Ensure that get_device
has been called before possibly triggering the release function
through put_device or device_unregister.
Reviewed-by: Swen Schillig <swen@xxxxxxxxxxxx>
Signed-off-by: Christof Schmitt <christof.schmitt@xxxxxxxxxx>
---
drivers/s390/scsi/zfcp_unit.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -urpN linux-2.6/drivers/s390/scsi/zfcp_unit.c linux-2.6-patched/drivers/s390/scsi/zfcp_unit.c
--- linux-2.6/drivers/s390/scsi/zfcp_unit.c 2010-10-05 15:58:17.000000000 +0200
+++ linux-2.6-patched/drivers/s390/scsi/zfcp_unit.c 2010-10-05 15:58:21.000000000 +0200
@@ -142,6 +142,8 @@ int zfcp_unit_add(struct zfcp_port *port
return -ENOMEM;
}
+ get_device(&port->dev);
+
if (device_register(&unit->dev)) {
put_device(&unit->dev);
return -ENOMEM;
@@ -152,8 +154,6 @@ int zfcp_unit_add(struct zfcp_port *port
return -EINVAL;
}
- get_device(&port->dev);
-
write_lock_irq(&port->unit_list_lock);
list_add_tail(&unit->list, &port->unit_list);
write_unlock_irq(&port->unit_list_lock);
--
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