1 From: Hannes Reinecke <hare@suse.de>
2 Subject: Skip deleted devices in __scsi_device_lookup_by_target()
5 __scsi_device_lookup_by_target() will always return
6 the first sdev with a matching LUN, regardless of
7 the state. However, when this sdev is in SDEV_DEL
8 scsi_device_lookup_by_target() will ignore this
9 device and so any valid device on the list after
10 the deleted device will never be found.
11 So we have to modify __scsi_device_lookup_by_target()
12 to skip any device in SDEV_DEL.
14 Signed-off-by: Hannes Reinecke <hare@suse.de>
16 diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
17 index f8b79d4..537bb92 100644
18 --- a/drivers/scsi/scsi.c
19 +++ b/drivers/scsi/scsi.c
20 @@ -1099,7 +1099,8 @@ EXPORT_SYMBOL(__starget_for_each_device);
21 * Description: Looks up the scsi_device with the specified @lun for a given
22 * @starget. The returned scsi_device does not have an additional
23 * reference. You must hold the host's host_lock over this call and
24 - * any access to the returned scsi_device.
25 + * any access to the returned scsi_device. A scsi_device in state
26 + * SDEV_DEL is skipped.
28 * Note: The only reason why drivers should use this is because
29 * they need to access the device list in irq context. Otherwise you
30 @@ -1111,6 +1112,8 @@ struct scsi_device *__scsi_device_lookup_by_target(struct scsi_target *starget,
31 struct scsi_device *sdev;
33 list_for_each_entry(sdev, &starget->devices, same_target_siblings) {
34 + if (sdev->sdev_state == SDEV_DEL)