sbp2: fix deregistration of status fifo address space

The proper designator of an invalid CSR address is ~(u64)0, not (u64)0.
Use the correct value in initialization and deregistration.
Also, scsi_id->sbp2_lun does not need to be initialized twice.
(scsi_id was kzalloc'd.)

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index 251656ec7d92..975a56bfab3d 100644
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -794,12 +794,12 @@ static struct scsi_id_instance_data *sbp2_alloc_device(struct unit_directory *ud
         scsi_id->ud = ud;
         scsi_id->speed_code = IEEE1394_SPEED_100;
         scsi_id->max_payload_size = sbp2_speedto_max_payload[IEEE1394_SPEED_100];
+        scsi_id->status_fifo_addr = ~0ULL;
         atomic_set(&scsi_id->sbp2_login_complete, 0);
         INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_inuse);
         INIT_LIST_HEAD(&scsi_id->sbp2_command_orb_completed);
         INIT_LIST_HEAD(&scsi_id->scsi_list);
         spin_lock_init(&scsi_id->sbp2_command_orb_lock);
-        scsi_id->sbp2_lun = 0;
 
         ud->device.driver_data = scsi_id;
 
@@ -1090,7 +1090,7 @@ static void sbp2_remove_device(struct scsi_id_instance_data *scsi_id)
                 SBP2_DMA_FREE("single query logins data");
         }
 
-        if (scsi_id->status_fifo_addr)
+        if (scsi_id->status_fifo_addr != ~0ULL)
                 hpsb_unregister_addrspace(&sbp2_highlevel, hi->host,
                         scsi_id->status_fifo_addr);