staging: comedi: 8255: move the subdev_8255_io function

The subdev_8255_interrupt function indirectly calls subdev_8255_io.
For aesthetic reasons, move the subdev_8255_io function.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/8255.c

@@ -102,6 +102,16 @@ struct subdev_8255_private {
 	int (*io) (int, int, int, unsigned long);
 };
 
+static int subdev_8255_io(int dir, int port, int data, unsigned long iobase)
+{
+	if (dir) {
+		outb(data, iobase + port);
+		return 0;
+	} else {
+		return inb(iobase + port);
+	}
+}
+
 void subdev_8255_interrupt(struct comedi_device *dev,
 			   struct comedi_subdevice *s)
 {
@@ -119,16 +129,6 @@ void subdev_8255_interrupt(struct comedi_device *dev,
 }
 EXPORT_SYMBOL(subdev_8255_interrupt);
 
-static int subdev_8255_io(int dir, int port, int data, unsigned long iobase)
-{
-	if (dir) {
-		outb(data, iobase + port);
-		return 0;
-	} else {
-		return inb(iobase + port);
-	}
-}
-
 static int subdev_8255_insn(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
 			    struct comedi_insn *insn, unsigned int *data)