evdev: check a null list

Change-Id: Ic281e4ff5f266bff9638f204964cc2503c7d90c8

diff --git a/src/evdev-fallback.c b/src/evdev-fallback.c
index a4e9d47878d75f50bbba6f7f4165267f1aad9875..67d3fc02f04e9884b19e91b5ea88034cc1c67397 100644 (file)
--- a/src/evdev-fallback.c
+++ b/src/evdev-fallback.c
@@ -1525,6 +1525,7 @@ fallback_device_interface_set_aux_data(struct evdev_dispatch *evdev_dispatch, ui
        struct mt_aux_data *aux_data;
 
        dispatch = fallback_dispatch(evdev_dispatch);
+       if (!dispatch->mt.aux_data_list) return;
 
        if (!list_empty(&dispatch->mt.aux_data_list[0])) {
                list_for_each(aux_data, &dispatch->mt.aux_data_list[0], link) {