Thanks, this looks much cleaner than the initial variant.

> +     if (dev_is_ide) {
> +             storvsc_get_ide_info(device, &target, &path);
> +             host_dev->path = device_info.path_id;
> +             host_dev->target = device_info.target_id;
> +     } else {
> +             host_dev->path = device_info.path_id;
> +             host_dev->target = device_info.target_id;
> +     }

Is using the device_info values in both branches intentional?  If so
there's no need to have these assignments duplicated.

> +     if (dev_is_ide) {
> +             ret = scsi_add_device(host, 0, target, 0);
> +             if (ret) {
> +                     scsi_remove_host(host);
> +                     goto err_out;
> +             }

I'd add another goto error label for this piece of error handling.

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