diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 07779c721242..8dab8e5e339e 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2593,6 +2593,9 @@ static int edge_startup(struct usb_serial *serial)
 
 static void edge_disconnect(struct usb_serial *serial)
 {
+	struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
+
+	cancel_delayed_work_sync(&edge_serial->heartbeat_work);
 }
 
 static void edge_release(struct usb_serial *serial)