diff --git a/drivers/spi/spi-rockchip-test.c b/drivers/spi/spi-rockchip-test.c
index 20af47d09828..544d6038919a 100644
--- a/drivers/spi/spi-rockchip-test.c
+++ b/drivers/spi/spi-rockchip-test.c
@@ -74,7 +74,11 @@ int spi_write_slt(int id, const void *txbuf, size_t n)
 
 	spi_message_init(&m);
 	spi_message_add_tail(&t, &m);
-	return spi_sync(spi, &m);
+	ret = spi_sync(spi, &m);
+	if (m.actual_length && m.actual_length != n)
+		pr_err("%s len=%d actual_length=%d\n", __func__, n, m.actual_length);
+
+	return ret;
 }
 
 int spi_read_slt(int id, void *rxbuf, size_t n)
@@ -99,7 +103,11 @@ int spi_read_slt(int id, void *rxbuf, size_t n)
 
 	spi_message_init(&m);
 	spi_message_add_tail(&t, &m);
-	return spi_sync(spi, &m);
+	ret = spi_sync(spi, &m);
+	if (m.actual_length && m.actual_length != n)
+		pr_err("%s len=%d actual_length=%d\n", __func__, n, m.actual_length);
+
+	return ret;
 }
 
 int spi_write_then_read_slt(int id, const void *txbuf, unsigned n_tx,