staging: comedi: pcl818: cleanup dev->board_name usage

This legacy driver does no additional probing so the dev->board_name
will already be properly initialized by the comedi core before calling
the (*attach) function.

Remove the unnecessary initialization of dev->board_name and use it
when requesting the resources instead of the open-coded strings.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/pcl818.c

@@ -1616,7 +1616,7 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		devpriv->io_range = PCLx1xFIFO_RANGE;
 		devpriv->usefifo = 1;
 	}
-	if (!request_region(iobase, devpriv->io_range, "pcl818")) {
+	if (!request_region(iobase, devpriv->io_range, dev->board_name)) {
 		comedi_error(dev, "I/O port conflict\n");
 		return -EIO;
 	}
@@ -1628,8 +1628,6 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EIO;
 	}
 
-	dev->board_name = board->name;
-
 	/* grab our IRQ */
 	irq = 0;
 	if (board->IRQbits != 0) {	/* board support IRQ */
@@ -1641,8 +1639,8 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				     irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (request_irq
-				    (irq, interrupt_pcl818, 0, "pcl818", dev)) {
+				if (request_irq(irq, interrupt_pcl818, 0,
+						dev->board_name, dev)) {
 					printk
 					    (", unable to allocate IRQ %u, DISABLING IT",
 					     irq);
@@ -1707,7 +1705,7 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			printk(KERN_ERR "DMA is out of allowed range, FAIL!\n");
 			return -EINVAL;	/* Bad DMA */
 		}
-		ret = request_dma(dma, "pcl818");
+		ret = request_dma(dma, dev->board_name);
 		if (ret)
 			return -EBUSY;	/* DMA isn't free */
 		devpriv->dma = dma;