staging: comedi: addi_apci_2200: remove devpriv allocation

The 'devpriv' is not used in this driver. Remove it's allocation
in the auto_attach and the check for it in the detach.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi_apci_2200.c

@@ -81,7 +81,6 @@ static int apci2200_auto_attach(struct comedi_device *dev,
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	const struct addi_board *this_board;
-	struct addi_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret, n_subdevices;
 
@@ -91,11 +90,6 @@ static int apci2200_auto_attach(struct comedi_device *dev,
 	dev->board_ptr = this_board;
 	dev->board_name = this_board->pc_DriverName;
 
-	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
-	if (!devpriv)
-		return -ENOMEM;
-	dev->private = devpriv;
-
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
 		return ret;
@@ -154,12 +148,9 @@ static int apci2200_auto_attach(struct comedi_device *dev,
 static void apci2200_detach(struct comedi_device *dev)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-	struct addi_private *devpriv = dev->private;
 
-	if (devpriv) {
 	if (dev->iobase)
 		apci2200_reset(dev);
-	}
 	if (dev->subdevices)
 		addi_watchdog_cleanup(&dev->subdevices[4]);
 	if (pcidev) {