This was supposed to bitwise AND but there is a typo.
Fixes: 1a02387063fb ('staging: comedi: me4000: remove 'board' from me4000_ai_insn_read()')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index 5aa1780..15a5320 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -480,7 +480,7 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
entry = chan | ME4000_AI_LIST_RANGE(range);
if (aref == AREF_DIFF) {
- if (!(s->subdev_flags && SDF_DIFF)) {
+ if (!(s->subdev_flags & SDF_DIFF)) {
dev_err(dev->class_dev,
"Differential inputs are not available\n");
return -EINVAL;
@@ -559,7 +559,7 @@ static int me4000_ai_check_chanlist(struct comedi_device *dev,
}
if (aref == AREF_DIFF) {
- if (!(s->subdev_flags && SDF_DIFF)) {
+ if (!(s->subdev_flags & SDF_DIFF)) {
dev_err(dev->class_dev,
"Differential inputs are not available\n");
return -EINVAL;
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