iio:bma180: Missing check for frequency fractional part

val2 should be zero

This will make no difference for correct inputs but will reject
incorrect ones with a decimal part in the value written to the sysfs
interface.

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Stable@vger.kernel.org

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 28388bb5d583..a077cc86421b 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -376,6 +376,8 @@ static int bma180_write_raw(struct iio_dev *indio_dev,
                 mutex_unlock(&data->mutex);
                 return ret;
         case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
+                if (val2)
+                        return -EINVAL;
                 mutex_lock(&data->mutex);
                 ret = bma180_set_bw(data, val);
                 mutex_unlock(&data->mutex);