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scsi: hpsa: correct device id issues 

Correct a 'rare' race condition where a disk is failed after a device list
has been obtained from the controller and before attempting to get the
device id.

Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Don Brace 2019-03-12 13:11:39 -05:00 committed by Martin K. Petersen
parent 49ea45cb1d
commit a45bcc4e11
1 changed files with 7 additions and 3 deletions
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10
drivers/scsi/hpsa.c
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@ -3967,14 +3967,18 @@ static int hpsa_update_device_info(struct ctlr_info *h,
memset(this_device->device_id, 0, memset(this_device->device_id, 0,
sizeof(this_device->device_id)); sizeof(this_device->device_id));
if (hpsa_get_device_id(h, scsi3addr, this_device->device_id, 8, if (hpsa_get_device_id(h, scsi3addr, this_device->device_id, 8,
sizeof(this_device->device_id)) < 0) sizeof(this_device->device_id)) < 0) {
dev_err(&h->pdev->dev, dev_err(&h->pdev->dev,
"hpsa%d: %s: can't get device id for host %d:C0:T%d:L%d\t%s\t%.16s\n", "hpsa%d: %s: can't get device id for [%d:%d:%d:%d]\t%s\t%.16s\n",
h->ctlr, __func__, h->ctlr, __func__,
h->scsi_host->host_no, h->scsi_host->host_no,
this_device->target, this_device->lun, this_device->bus, this_device->target,
this_device->lun,
scsi_device_type(this_device->devtype), scsi_device_type(this_device->devtype),
this_device->model); this_device->model);
rc = HPSA_LV_FAILED;
goto bail_out;
}
if ((this_device->devtype == TYPE_DISK || if ((this_device->devtype == TYPE_DISK ||
this_device->devtype == TYPE_ZBC) && this_device->devtype == TYPE_ZBC) &&