diff --git a/drivers/serial/sunhv.c b/drivers/serial/sunhv.c
index be0fe152891b762135ec1d72ff9a8cd200aea708..145c0281495d81e1c7c214ed5f61847da0555d0d 100644
--- a/drivers/serial/sunhv.c
+++ b/drivers/serial/sunhv.c
@@ -392,7 +392,7 @@ static struct uart_ops sunhv_pops = {
 
 static struct uart_driver sunhv_reg = {
 	.owner			= THIS_MODULE,
-	.driver_name		= "serial",
+	.driver_name		= "sunhv",
 	.dev_name		= "ttyS",
 	.major			= TTY_MAJOR,
 };
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index 543f93741e6f5e9b09e79fb9f40076554cc9cc1a..9ff5b38f3bee9e5ac3aedf0740c2bd4ca71bff9d 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -826,7 +826,7 @@ static struct uart_ops sunsab_pops = {
 
 static struct uart_driver sunsab_reg = {
 	.owner			= THIS_MODULE,
-	.driver_name		= "serial",
+	.driver_name		= "sunsab",
 	.dev_name		= "ttyS",
 	.major			= TTY_MAJOR,
 };
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 4e2302d43ab163966234da9091b173b955a9c131..03806a9352092a7b952259ebae0019e23a53f3c2 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -1173,7 +1173,7 @@ static void sunsu_autoconfig(struct uart_sunsu_port *up)
 
 static struct uart_driver sunsu_reg = {
 	.owner			= THIS_MODULE,
-	.driver_name		= "serial",
+	.driver_name		= "sunsu",
 	.dev_name		= "ttyS",
 	.major			= TTY_MAJOR,
 };
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 90a20a152ebfe9ce0779b3ddba4682941ce9de4a..7e9fa5ef0eb72c3a90a51871c584ac134efd2ed2 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1023,7 +1023,7 @@ static struct uart_sunzilog_port *sunzilog_irq_chain;
 
 static struct uart_driver sunzilog_reg = {
 	.owner		=	THIS_MODULE,
-	.driver_name	=	"ttyS",
+	.driver_name	=	"sunzilog",
 	.dev_name	=	"ttyS",
 	.major		=	TTY_MAJOR,
 };