staging: comedi: jr3_pci: remove 'channel_no' from subdevice private data

This member of the subdevice private data is just the subdevice 'index'. Use
that instead and remove the member.
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/jr3_pci.c

@@ -111,7 +111,6 @@ struct jr3_pci_subdev_private {
 		state_jr3_init_use_offset_complete,
 		state_jr3_done
 	} state;
-	int channel_no;
 	int serial_no;
 	int model_no;
 	struct {
@@ -311,7 +310,7 @@ static int jr3_pci_open(struct comedi_device *dev)
 		spriv = s->private;
 		if (spriv)
 			dev_dbg(dev->class_dev, "serial: %p %d (%d)\n",
-				spriv, spriv->serial_no, spriv->channel_no);
+				spriv, spriv->serial_no, s->index);
 	}
 	return 0;
 }
@@ -646,7 +645,6 @@ jr3_pci_alloc_spriv(struct comedi_device *dev, struct comedi_subdevice *s)
 		return NULL;
 
 	spriv->channel = &devpriv->iobase->channel[s->index].data;
-	spriv->channel_no = s->index;
 
 	for (j = 0; j < 8; j++) {
 		spriv->range[j].length = 1;