diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index cb33fb4e9a80..e94a02395357 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -3106,6 +3106,8 @@ static void hso_free_interface(struct usb_interface *interface)
 			mutex_lock(&serial->parent->mutex);
 			serial->parent->usb_gone = 1;
 			mutex_unlock(&serial->parent->mutex);
+			cancel_work_sync(&serial_table[i]->async_put_intf);
+			cancel_work_sync(&serial_table[i]->async_get_intf);
 			hso_serial_tty_unregister(serial);
 			kref_put(&serial_table[i]->ref, hso_serial_ref_free);
 			set_serial_by_index(i, NULL);