BTUSB_INTR_RUNNING
if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
clear_bit(BTUSB_INTR_RUNNING, &data->flags);
clear_bit(BTUSB_INTR_RUNNING, &data->flags);
if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
clear_bit(BTUSB_INTR_RUNNING, &data->flags);