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Commit 9fe4df4d authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: usbdux: tidy up usbdux_pwm_period() 



Rename the local variable used for the private data pointer to 'devpriv'.

Fix the fx2delay calculation so it does not use floating point values.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b509a76a

drivers/staging/comedi/drivers/usbdux.c

+6 −5
Original line number Diff line number Diff line
@@ -1347,20 +1347,21 @@ static int usbduxsub_submit_pwm_urbs(struct comedi_device *dev) 
}



static int usbdux_pwm_period(struct comedi_device *dev,

			     struct comedi_subdevice *s, unsigned int period)

			     struct comedi_subdevice *s,

			     unsigned int period)

{

	struct usbdux_private *this_usbduxsub = dev->private;

	struct usbdux_private *devpriv = dev->private;

	int fx2delay = 255;



	if (period < MIN_PWM_PERIOD) {

		return -EAGAIN;

	} else {

		fx2delay = period / ((int)(6 * 512 * (1.0 / 0.033))) - 6;

		fx2delay = (period / (6 * 512 * 1000 / 33)) - 6;

		if (fx2delay > 255)

			return -EAGAIN;

	}

	this_usbduxsub->pwm_delay = fx2delay;

	this_usbduxsub->pwm_period = period;

	devpriv->pwm_delay = fx2delay;

	devpriv->pwm_period = period;



	return 0;

}