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-rw-r--r--drivers/iio/light/opt4001.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iio/light/opt4001.c b/drivers/iio/light/opt4001.c
index 944923cb8f28..2448d6330489 100644
--- a/drivers/iio/light/opt4001.c
+++ b/drivers/iio/light/opt4001.c
@@ -269,6 +269,9 @@ static int opt4001_write_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_INT_TIME:
+ if (val)
+ return -EINVAL;
+
int_time = opt4001_als_time_to_index(val2);
if (int_time < 0)
return int_time;