fix crashes when only one client on desktop

1 files changed, 1 insertions, 0 deletions

diff --git a/monsterwm.c b/monsterwm.c
index 5de1652..6f2c061 100644
--- a/monsterwm.c
+++ b/monsterwm.c
@@ -613,6 +613,7 @@ client* prev_client(client *c) {
 /* cyclic focus the previous window
  * if the window is the head, focus the last stack window */
 void prev_win() {
+    if (!current || !head->next) return;
     update_current(prev_client(prevfocus = current));
 }