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staging: comedi: usbduxfast: tidy up usbduxfast_ai_cancel()

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Remove the unnecessary comments and dev_err() noise.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2013-05-14 13:38:48 -07:00 • committed by Greg Kroah-Hartman
commit ce976fdb24
1 changed files with 2 additions and 9 deletions
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11
drivers/staging/comedi/drivers/usbduxfast.c
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@ -200,23 +200,16 @@ static int usbduxfast_ai_stop(struct comedi_device *dev, int do_unlink)
return 0;
}
/*
* This will cancel a running acquisition operation.
* This is called by comedi but never from inside the driver.
*/
static int usbduxfast_ai_cancel(struct comedi_device *dev,
struct comedi_subdevice *s)
{
struct usbduxfast_private *devpriv = dev->private;
int ret;
/* force unlink of all urbs */
if (!devpriv) {
dev_err(dev->class_dev, "%s: devpriv=NULL\n", __func__);
if (!devpriv)
return -EFAULT;
}
down(&devpriv->sem);
/* unlink */
ret = usbduxfast_ai_stop(dev, 1);
up(&devpriv->sem);