staging: comedi: cb_pcidas: tidy up cb_pcidas_trimpot_write()

All the boards supported by this driver have an AD7376 or AD8402
trimpot. Replace the switch () with and if () and remove the
unreachable dev_err() noise.

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>

diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index f22611b..2c6ef6e 100644 (file)
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -634,18 +634,12 @@ static void cb_pcidas_trimpot_write(struct comedi_device *dev,
 {
        const struct cb_pcidas_board *board = dev->board_ptr;
 
-       switch (board->trimpot) {
-       case AD7376:
+       if (board->trimpot == AD7376) {
                /* write 7-bit value to trimpot */
                cb_pcidas_calib_write(dev, val, 7, true);
-               break;
-       case AD8402:
+       } else {        /* AD8402 */
                /* write 10-bit channel/value to trimpot */
                cb_pcidas_calib_write(dev, (chan << 8) | val, 10, true);
-               break;
-       default:
-               dev_err(dev->class_dev, "driver bug?\n");
-               break;
        }
 }