USBIP IRP_MJ_CLOSE

其实个人觉地，对于IRP_MJ_CLOSE应无条件都成功。

static PAGEABLE NTSTATUS
vhci_close(__in PDEVICE_OBJECT devobj, __in PIRP Irp)
{
    pvdev_t    vdev = DEVOBJ_TO_VDEV(devobj);
    NTSTATUS    status;

    PAGED_CODE();

    // Check to see whether the bus is removed
    if (vdev->DevicePnPState == Deleted) {
        Irp->IoStatus.Status = status = STATUS_NO_SUCH_DEVICE;
        IoCompleteRequest(Irp, IO_NO_INCREMENT);
        return status;
    }
    Irp->IoStatus.Information = 0;
    Irp->IoStatus.Status = STATUS_SUCCESS;
    IoCompleteRequest(Irp, IO_NO_INCREMENT);

    return STATUS_SUCCESS;
}