iio: hid-sensor-magn-3d: Fix build warning

Fix build warning, sizeof() called on dynamically
sized pointer, by removing the call and the dependent
function parameter. It is not needed or used in this
driver, when pushing values to an iio buffer.

Changes from v1
- Fix mistake in varible name

Signed-off-by: Reyad Attiyat <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/magnetometer/hid-sensor-magn-3d.c

···
 };
 
 /* Function to push data to buffer */
-static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
-	int len)
+static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data)
 {
 	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
 	iio_push_to_buffers(indio_dev, data);
···
 
 	dev_dbg(&indio_dev->dev, "magn_3d_proc_event\n");
 	if (atomic_read(&magn_state->common_attributes.data_ready))
-		hid_sensor_push_data(indio_dev,
-				magn_state->iio_vals,
-				sizeof(magn_state->iio_vals));
+		hid_sensor_push_data(indio_dev, magn_state->iio_vals);
 
 	return 0;
 }