> res = scsi_probe_and_add_lun(starget, 0, &bflags, &sdev, rescan, NULL);
> - if (res == SCSI_SCAN_LUN_PRESENT) {
> - if (scsi_report_lun_scan(sdev, bflags, rescan) != 0)
> + if (res != SCSI_SCAN_NO_RESPONSE) {
> + if (scsi_report_lun_scan(sdev, bflags, rescan) != 0) {
> /*
> * The REPORT LUN did not scan the target,
> * do a sequential scan.
> */
> + if (res == SCSI_SCAN_TARGET_PRESENT)
> + /*
> + * There's a target here, but lun 0 is
> + * offline so we can't use the report_lun
> + * scan. Fall back to a sequential lun scan
> + * with a bflags of SPARSELUN.
> + *
> + * The old code also used a default scsi level
> + * of SCSI_2 which seems a bit spurious. Any
> + * misbehaving device should rather be added
> + * to the blacklist.
> + */
> + bflags |= BLIST_SPARSELUN;
> +
> scsi_sequential_lun_scan(starget, bflags,
> res, sdev->scsi_level, rescan);
If scsi_probe_and_add_lun returns SCSI_SCAN_TARGET_PRESENT sdev isn't valid at
this point. You should probably default to SCSI_2 for that case.
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