We put an upper bound on "val2" but we also need to prevent negative
values.
Fixes: 465c811f1f20 ("iio: accel: Add driver for the BMA400")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/iio/accel/bma400_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/accel/bma400_core.c b/drivers/iio/accel/bma400_core.c
index ab4a158b35af..ffc7b146bbfc 100644
--- a/drivers/iio/accel/bma400_core.c
+++ b/drivers/iio/accel/bma400_core.c
@@ -752,7 +752,7 @@ static int bma400_write_raw(struct iio_dev *indio_dev,
mutex_unlock(&data->mutex);
return ret;
case IIO_CHAN_INFO_SCALE:
- if (val != 0 || val2 > BMA400_SCALE_MAX)
+ if (val != 0 || val2 < 0 || val2 > BMA400_SCALE_MAX)
return -EINVAL;
mutex_lock(&data->mutex);
--
2.11.0
