staging: comedi: comedi_pci: dev->board_name is always valid

The dev->board_name is always initialized before calling the(*attach)
or (*auto_attach) function. It's no longer necessary to validate the
pointer in comedi_pci_enable().
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/comedi_pci.c

@@ -50,9 +50,7 @@ int comedi_pci_enable(struct comedi_device *dev)
 	if (rc < 0)
 		return rc;
 
-	rc = pci_request_regions(pcidev, dev->board_name
-						? dev->board_name
-						: dev->driver->driver_name);
+	rc = pci_request_regions(pcidev, dev->board_name);
 	if (rc < 0)
 		pci_disable_device(pcidev);
 	else