The SDF_GROUND and SDF_COMMON flags are not needed for the analog output
subdevice. Just remove them.

Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adv_pci1710.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c 
b/drivers/staging/comedi/drivers/adv_pci1710.c
index 339130b..0511f26 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -817,7 +817,7 @@ static int pci1710_auto_attach(struct comedi_device *dev,
        if (board->has_ao) {
                s = &dev->subdevices[subdev];
                s->type         = COMEDI_SUBD_AO;
-               s->subdev_flags = SDF_WRITABLE | SDF_GROUND | SDF_COMMON;
+               s->subdev_flags = SDF_WRITABLE;
                s->n_chan       = 2;
                s->maxdata      = 0x0fff;
                s->range_table  = &pci171x_ao_range;
-- 
2.5.1

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