diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index 969c3e6..121aeb9 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -132,6 +132,7 @@
  */
 void tty_port_destroy(struct tty_port *port)
 {
+	cancel_work_sync(&port->buf.work);
 	tty_buffer_free_all(port);
 }
 EXPORT_SYMBOL(tty_port_destroy);