iio: st_sensors: Fix buffer copy

Use byte_for_channel as iterator to properly initialize the buffer.

Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: <Stable@vger.kernel.org>

diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index 1665c8e4b62b245c4301a93143b1912ec140466d..e18bc67822563e8d4245396c60bebe5b717ed244 100644 (file)
--- a/drivers/iio/common/st_sensors/st_sensors_buffer.c
+++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c
@@ -71,7 +71,7 @@ int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf)
                                goto st_sensors_free_memory;
                        }
 
-                       for (i = 0; i < n * num_data_channels; i++) {
+                       for (i = 0; i < n * byte_for_channel; i++) {
                                if (i < n)
                                        buf[i] = rx_array[i];
                                else