staging: comedi: usbdux: fix usbdux_pwm_start()

	return 0;

}

/* is called from insn so there's no need to do all the sanity checks */

static int usbdux_pwm_start(struct comedi_device *dev,

			    struct comedi_subdevice *s)

{

	int ret, i;

	struct usbdux_private *this_usbduxsub = dev->private;

	struct usbdux_private *devpriv = dev->private;

	int ret = 0;

	if (this_usbduxsub->pwm_cmd_running) {

		/* already running */

		return 0;

	}

	down(&devpriv->sem);

	if (devpriv->pwm_cmd_running)

		goto pwm_start_exit;

	this_usbduxsub->dux_commands[1] = ((int8_t) this_usbduxsub->pwn_delay);

	devpriv->dux_commands[1] = devpriv->pwn_delay;

	ret = send_dux_commands(dev, SENDPWMON);

	if (ret < 0)

		return ret;

		goto pwm_start_exit;

	/* initialise the buffer */

	for (i = 0; i < this_usbduxsub->size_pwm_buf; i++)

		((char *)(this_usbduxsub->urb_pwm->transfer_buffer))[i] = 0;

	memset(devpriv->urb_pwm->transfer_buffer, 0, devpriv->size_pwm_buf);

	this_usbduxsub->pwm_cmd_running = 1;

	devpriv->pwm_cmd_running = 1;

	ret = usbduxsub_submit_pwm_urbs(dev);

	if (ret < 0) {

		this_usbduxsub->pwm_cmd_running = 0;

	if (ret < 0)

		devpriv->pwm_cmd_running = 0;

pwm_start_exit:

	up(&devpriv->sem);

	return ret;

}

	return 0;

}

/* generates the bit pattern for PWM with the optional sign bit */

static int usbdux_pwm_pattern(struct comedi_device *dev,