staging: comedi: aio_iiro_16: tidy up subdevice init

For aesthetics, add some white space to the subdevice initialization.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/aio_iiro_16.c

@@ -81,6 +81,7 @@ static int aio_iiro_16_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
+	/* Digital Output subdevice */
 	s = &dev->subdevices[0];
 	s->type		= COMEDI_SUBD_DO;
 	s->subdev_flags	= SDF_WRITABLE;
@@ -89,6 +90,7 @@ static int aio_iiro_16_attach(struct comedi_device *dev,
 	s->range_table	= &range_digital;
 	s->insn_bits	= aio_iiro_16_do_insn_bits;
 
+	/* Digital Input subdevice */
 	s = &dev->subdevices[1];
 	s->type		= COMEDI_SUBD_DI;
 	s->subdev_flags	= SDF_READABLE;