src/output.c: prevent crash with no outputs available

diff --git a/src/output.c b/src/output.c
index bd154de06ea95e295e3bcca6df7493b46489f0d8..efbdcdd8022eb49c5ddf4413042e94da521391e2 100644 (file)
--- a/src/output.c
+++ b/src/output.c
@@ -434,6 +434,9 @@ output_from_wlr_output(struct server *server, struct wlr_output *wlr_output)
 struct wlr_box
 output_usable_area_in_layout_coords(struct output *output)
 {
+       if (!output) {
+               return (struct wlr_box){0};
+       }
        struct wlr_box box = output->usable_area;
        double ox = 0, oy = 0;
        wlr_output_layout_output_coords(output->server->output_layout,