diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index def5199ca004..54122db81de4 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1015,7 +1015,7 @@ static int uart_break_ctl(struct tty_struct *tty, int break_state)
 
 	mutex_lock(&port->mutex);
 
-	if (uport->type != PORT_UNKNOWN)
+	if (uport->type != PORT_UNKNOWN && uport->ops->break_ctl)
 		uport->ops->break_ctl(uport, break_state);
 
 	mutex_unlock(&port->mutex);