> index 0962fd5..c3aea06 100644
> --- a/drivers/scsi/device_handler/scsi_dh_alua.c
> +++ b/drivers/scsi/device_handler/scsi_dh_alua.c
> @@ -1100,6 +1100,8 @@ static int alua_bus_attach(struct scsi_device *sdev)
> err = alua_initialize(sdev, h);
> if (err == SCSI_DH_NOMEM)
> ret = -ENOMEM;
> + if (err == SCSI_DH_DEV_UNSUPP)
> + ret = -ENODEV;
> if (err != SCSI_DH_OK && err != SCSI_DH_DEV_OFFLINED)
> goto failed;
This screams for a switch statement..
> --- a/drivers/scsi/scsi_dh.c
> +++ b/drivers/scsi/scsi_dh.c
> @@ -133,8 +133,9 @@ static int scsi_dh_handler_attach(struct scsi_device
> *sdev,
>
> error = scsi_dh->attach(sdev);
> if (error) {
> - sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%d)\n",
> - scsi_dh->name, error);
> + if (error != -ENODEV)
> + sdev_printk(KERN_ERR, sdev, "%s: Attach failed (%d)\n",
> + scsi_dh->name, error);
> module_put(scsi_dh->module);
OTOH why don't we just return the SCSI_DH_ values from ->attach?
