fix the fix wl_reverse() for empty lists

2012-07-15 19:42:09 +02:00 · 2012-07-15 19:42:09 +02:00 · 2b859633a1
parent a890a55937
commit 2b859633a1
1 changed files with 6 additions and 3 deletions
--- a/src/misc/wlist.c
+++ b/src/misc/wlist.c
@ -155,14 +155,17 @@ wl_append(wordlist *wlist, wordlist *nwl)
 wordlist *
 wl_reverse(wordlist *wl)
 {
-    while (wl) {
+    if (!wl)
+        return wl;
+
+    for (;;) {
         wordlist *t = wl->wl_next;
         wl->wl_next = wl->wl_prev;
         wl->wl_prev = t;
+         if (!t)
+             return wl;
         wl = t;
    }
-
-    return wl;
 }