diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
index f610ea62c9ca978297fb8102c15ad6d3d153aeb8..39e7fb679ab85892917be72bdb3d0ab05d419f4f 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
@@ -368,7 +368,6 @@ static const struct apci3xxx_boardinfo apci3xxx_boardtypes[] = {
 
 struct apci3xxx_private {
 	int iobase;
-	int i_IobaseReserved;
 	void __iomem *dw_AiBase;
 	unsigned int ui_AiNbrofChannels;	/*  how many channels is measured */
 	unsigned int ui_AiReadData[32];
@@ -613,7 +612,6 @@ static int apci3xxx_auto_attach(struct comedi_device *dev,
 	dev->iobase = pci_resource_start(pcidev, 2);
 	devpriv->iobase = pci_resource_start(pcidev, 2);
 	devpriv->dw_AiBase = pci_ioremap_bar(pcidev, 3);
-	devpriv->i_IobaseReserved = pci_resource_start(pcidev, 3);
 
 	if (pcidev->irq > 0) {
 		ret = request_irq(pcidev->irq, apci3xxx_irq_handler,