diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
index 7ff61e24a195cbca54d60aaefd65bbdf3d0af187..33fb94f7896773c53141ec283f15a3a18be96f1a 100644
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -133,10 +133,6 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
 	if (of_find_property(np, "no-loopback-test", NULL))
 		port->flags |= UPF_SKIP_TEST;
 
-	ret = of_alias_get_id(np, "serial");
-	if (ret >= 0)
-		port->line = ret;
-
 	port->dev = &ofdev->dev;
 
 	switch (type) {