fix the deref of null.ret.stat

Change-Id: If9407af4c430c84614bea0e870db03aa075f9544

diff --git a/src/wayland-tbm-server.c b/src/wayland-tbm-server.c
index 4929e11..80d5e0a 100644 (file)
--- a/src/wayland-tbm-server.c
+++ b/src/wayland-tbm-server.c
@@ -1151,6 +1151,7 @@ wayland_tbm_server_buffer_has_sync_timeline(struct wayland_tbm_server *tbm_srv,
        if (wl_resource_instance_of(wl_buffer, &wl_buffer_interface,
                                    &_wayland_tbm_buffer_impementation)) {
                tbm_buffer = wl_resource_get_user_data(wl_buffer);
+               WL_TBM_RETURN_VAL_IF_FAIL(tbm_buffer != NULL, 0);
 
                if (tbm_buffer->sync_timeline != -1)
                        return 1;