iio: gyro: bmg160: fix buffer read values

When reading gyroscope axes using iio buffers, the values
returned are always 0. In the interrupt handler, the return
value of the read operation is returned to the user instead
of the value read. Return the value read to the user.

This is also fixed in commit 82d8e5da1a33 ("iio:
accel: bmg160: optimize transfers in trigger handler").

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index 8d3f0b36bc1cf26c844444b086e2822d9f29e9d2..4dac567e75b4f00c61ea11d9c1dbc3b663e56a25 100644 (file)
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -781,7 +781,7 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p)
                        mutex_unlock(&data->mutex);
                        goto err;
                }
-               data->buffer[i++] = ret;
+               data->buffer[i++] = val;
        }
        mutex_unlock(&data->mutex);