Add initial Xinerama support

[wmpus] / util.c

diff --git a/util.c b/util.c
index 8495a1c1f3be4a5983f3f0cc3f32f3cceb4f2b1e..7425be00fa41ab37cd3437ad01204633c808be7d 100644 (file)
--- a/util.c
+++ b/util.c
@@ -30,7 +30,7 @@ void list_insert_after(list_t *prev, void *data)
 list_t *list_append(list_t *head, void *data)
 {
        list_t *last = head;
-       while (last->next)
+       while (last && last->next)
                last = last->next;
        list_t *node = new0(list_t);
        node->data = data;