Bitwise | has higher precedence than ?: so we need to add some
parenthesis for this to work as intended.
Fixes: 7c9574090d30 ('staging: comedi: dt2811: simplify A/D reference
configuration')
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
diff --git a/drivers/staging/comedi/drivers/dt2811.c
b/drivers/staging/comedi/drivers/dt2811.c
index 904f6377..8bbd938 100644
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -588,8 +588,8 @@ static int dt2811_attach(struct comedi_device *dev, struct
comedi_devconfig *it)
s = &dev->subdevices[0];
s->type = COMEDI_SUBD_AI;
s->subdev_flags = SDF_READABLE |
- (it->options[2] == 1) ? SDF_DIFF :
- (it->options[2] == 2) ? SDF_COMMON : SDF_GROUND;
+ ((it->options[2] == 1) ? SDF_DIFF :
+ (it->options[2] == 2) ? SDF_COMMON : SDF_GROUND);
s->n_chan = (it->options[2] == 1) ? 8 : 16;
s->maxdata = 0x0fff;
s->range_table = board->is_pgh ? &dt2811_pgh_ai_ranges
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