NO_HW_FLOWCTRL
if (!ascport->rts && ascport->states[NO_HW_FLOWCTRL])
ascport->states[NO_HW_FLOWCTRL]);
ascport->states[NO_HW_FLOWCTRL] =
if (IS_ERR(ascport->states[NO_HW_FLOWCTRL]))
ascport->states[NO_HW_FLOWCTRL] = NULL;