staging: comedi: ni_labpc.h: add identifiers to function parameters

Fix checkpatch.pl warnings of the form "function definition argument
'foo' should also have an identifier name".
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/ni_labpc.h

@@ -52,8 +52,8 @@ struct labpc_private {
 	 * function pointers so we can use inb/outb or readb/writeb as
 	 * appropriate
 	 */
-	unsigned int (*read_byte)(struct comedi_device *, unsigned long reg);
-	void (*write_byte)(struct comedi_device *,
+	unsigned int (*read_byte)(struct comedi_device *dev, unsigned long reg);
+	void (*write_byte)(struct comedi_device *dev,
 			   unsigned int byte, unsigned long reg);
 };