staging: comedi: pcmmio: remove unused members in private data

The 'pol' and 'enab' members in the private data are never used. The
'num' member is set during the attach but never used. Remove them.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/pcmmio.c

@@ -270,11 +270,6 @@ struct pcmmio_subdev_private {
 struct pcmmio_private {
 	/* stuff for DIO */
 	struct {
-		/* shadow of POLx registers */
-		unsigned char pol[NUM_PAGED_REGS];
-		/* shadow of ENABx registers */
-		unsigned char enab[NUM_PAGED_REGS];
-		int num;
 		unsigned long iobase;
 		spinlock_t spinlock;
 	} asics[MAX_ASICS];
@@ -974,7 +969,6 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -ENOMEM;
 
 	for (asic = 0; asic < MAX_ASICS; ++asic) {
-		devpriv->asics[asic].num = asic;
 		devpriv->asics[asic].iobase =
 		    dev->iobase + 16 + asic * ASIC_IOSIZE;
 		spin_lock_init(&devpriv->asics[asic].spinlock);