iio: light: adjd_s311: Use iio_push_to_buffers_with_ts() to allow source size runtime check

Also move the structure used as the source to the stack as it is only 16
bytes and not the target of an DMA or similar.

Reviewed-by: Matti Vaittinen <[e-mail]>
Reviewed-by: Andy Shevchenko <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/light/adjd_s311.c

···
 
 struct adjd_s311_data {
 	struct i2c_client *client;
-	struct {
-		s16 chans[4];
-		aligned_s64 ts;
-	} scan;
 };
 
 enum adjd_s311_channel_idx {
···
 	struct adjd_s311_data *data = iio_priv(indio_dev);
 	s64 time_ns = iio_get_time_ns(indio_dev);
 	int i, j = 0;
+	struct {
+		s16 chans[4];
+		aligned_s64 ts;
+	} scan = { };
 
 	int ret = adjd_s311_req_data(indio_dev);
 	if (ret < 0)
···
 		if (ret < 0)
 			goto done;
 
-		data->scan.chans[j++] = ret & ADJD_S311_DATA_MASK;
+		scan.chans[j++] = ret & ADJD_S311_DATA_MASK;
 	}
 
-	iio_push_to_buffers_with_timestamp(indio_dev, &data->scan, time_ns);
+	iio_push_to_buffers_with_ts(indio_dev, &scan, sizeof(scan), time_ns);
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);