staging: comedi: das08: rename das08_di_rbits() & das08jr_di_rbits()

`das08_di_rbits()` and `das08jr_di_rbits()` are handlers for the Comedi
`INSN_BITS` instruction for the digital input subdevice on "non-JR" and
"JR" boards, respectively.  Rename them to `das08_di_insn_bits()` and
`das08jr_di_insn_bits()` respectively for consistency.
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/das08.c

@@ -242,7 +242,8 @@ static int das08_ai_insn_read(struct comedi_device *dev,
 	return n;
 }
 
-static int das08_di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
+static int das08_di_insn_bits(struct comedi_device *dev,
+			      struct comedi_subdevice *s,
 			      struct comedi_insn *insn, unsigned int *data)
 {
 	data[0] = 0;
@@ -272,7 +273,7 @@ static int das08_do_wbits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int das08jr_di_rbits(struct comedi_device *dev,
+static int das08jr_di_insn_bits(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
@@ -402,8 +403,8 @@ int das08_common_attach(struct comedi_device *dev, unsigned long iobase)
 		s->n_chan = thisboard->di_nchan;
 		s->maxdata = 1;
 		s->range_table = &range_digital;
-		s->insn_bits =
-			thisboard->is_jr ? das08jr_di_rbits : das08_di_rbits;
+		s->insn_bits = thisboard->is_jr ? das08jr_di_insn_bits :
+			       das08_di_insn_bits;
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
 	}