diff --git a/drivers/staging/comedi/drivers/acl7225b.c b/drivers/staging/comedi/drivers/acl7225b.c
index 8d9e1aec985a6808fb613b50e5737d55e2e9802f..adbe580fa1f6a36809d2437c6abcc37daf4cdc1c 100644
--- a/drivers/staging/comedi/drivers/acl7225b.c
+++ b/drivers/staging/comedi/drivers/acl7225b.c
@@ -69,12 +69,11 @@ static int acl7225b_attach(struct comedi_device *dev,
 {
 	const struct acl7225b_boardinfo *board = comedi_board(dev);
 	struct comedi_subdevice *s;
-	int iobase, iorange;
+	int iobase;
 	int ret;
 
 	iobase = it->options[0];
-	iorange = board->io_range;
-	if (!request_region(iobase, iorange, dev->board_name))
+	if (!request_region(iobase, board->io_range, dev->board_name))
 		return -EIO;
 	dev->iobase = iobase;
 	dev->irq = 0;