staging: comedi: pcl812: 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/pcl812.c

@@ -1133,7 +1133,7 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	printk(KERN_INFO "comedi%d: pcl812:  board=%s, ioport=0x%03lx",
 	       dev->minor, board->name, iobase);
 
-	if (!request_region(iobase, board->io_range, "pcl812")) {
+	if (!request_region(iobase, board->io_range, dev->board_name)) {
 		printk("I/O port conflict\n");
 		return -EIO;
 	}
@@ -1146,8 +1146,6 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 	dev->private = devpriv;
 
-	dev->board_name = board->name;
-
 	irq = 0;
 	if (board->IRQbits != 0) {	/* board support IRQ */
 		irq = it->options[1];
@@ -1158,8 +1156,8 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				     "DISABLING IT", irq);
 				irq = 0;	/* Bad IRQ */
 			} else {
-				if (request_irq
-				    (irq, interrupt_pcl812, 0, "pcl812", dev)) {
+				if (request_irq(irq, interrupt_pcl812, 0,
+						dev->board_name, dev)) {
 					printk
 					    (", unable to allocate IRQ %u, "
 					     "DISABLING IT", irq);
@@ -1183,7 +1181,7 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			printk(", DMA is out of allowed range, FAIL!\n");
 			return -EINVAL;	/* Bad DMA */
 		}
-		ret = request_dma(dma, "pcl812");
+		ret = request_dma(dma, dev->board_name);
 		if (ret) {
 			printk(KERN_ERR ", unable to allocate DMA %u, FAIL!\n",
 			       dma);