staging: comedi: rti800: cleanup dev->board_name usage

The comedi core initializes the dev->board_name before calling the
driver (*attach) function. There is not reason to reinitialize it
in the driver.

Use the dev->board_name when doing the request_{region,irq}() instead
of the open-coded string.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/rti800.c

@@ -309,7 +309,7 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	struct comedi_subdevice *s;
 
 	iobase = it->options[0];
-	if (!request_region(iobase, RTI800_SIZE, "rti800"))
+	if (!request_region(iobase, RTI800_SIZE, dev->board_name))
 		return -EIO;
 	dev->iobase = iobase;
 
@@ -319,14 +319,13 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	irq = it->options[1];
 	if (irq) {
-		ret = request_irq(irq, rti800_interrupt, 0, "rti800", dev);
+		ret = request_irq(irq, rti800_interrupt, 0, dev->board_name,
+				  dev);
 		if (ret < 0)
 			return ret;
 		dev->irq = irq;
 	}
 
-	dev->board_name = board->name;
-
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;