Fix segfault in fullscreen layout when a window with transient(s) unmap.

diff --git a/spectrwm.c b/spectrwm.c
index bafbc34..4d2128a 100644 (file)
--- a/spectrwm.c
+++ b/spectrwm.c
@@ -4960,8 +4960,7 @@ max_stack(struct workspace *ws, struct swm_geometry *g)
                }
        }
 
-       if (TRANS(win)) {
-               parent = find_window(win->transient);
+       if (TRANS(win) && (parent = find_window(win->transient))) {
                raise_window(parent);
 
                TAILQ_FOREACH(w, &ws->stack, stack_entry)