[PATCH 3.16.y-ckt 091/170] iio: st_sensors: Fix buffer copy

[Luis Henriques]

3.16.7-ckt1 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Robin van der Gracht <robin@xxxxxxxxxxx>

commit 4250c90b30b8bf2a1a21122ba0484f8f351f152d upstream.

Use byte_for_channel as iterator to properly initialize the buffer.

Signed-off-by: Robin van der Gracht <robin@xxxxxxxxxxx>
Acked-by: Denis Ciocca <denis.ciocca@xxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
 drivers/iio/common/st_sensors/st_sensors_buffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index 1665c8e4b62b..e18bc6782256 100644
--- 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
-- 
2.1.0

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