2 files changed, 2 insertions, 8 deletions

diff --git a/contrib/libreadline/mbutil.c b/contrib/libreadline/mbutil.c
index 9a8f17c0f74e..695845a60f4e 100644
--- a/contrib/libreadline/mbutil.c
+++ b/contrib/libreadline/mbutil.c
@@ -126,11 +126,11 @@ _rl_find_next_mbchar_internal (string, seed, count, find_non_zero)
   if (find_non_zero)
     {
       tmp = mbrtowc (&wc, string + point, strlen (string + point), &ps);
-      while (wcwidth (wc) == 0)
+      while (tmp > 0 && wcwidth (wc) == 0)
 	{
 	  point += tmp;
 	  tmp = mbrtowc (&wc, string + point, strlen (string + point), &ps);
-	  if (tmp == (size_t)(0) || tmp == (size_t)(-1) || tmp == (size_t)(-2))
+	  if (MB_NULLWCH (tmp) || MB_INVALIDCH (tmp))
 	    break;
 	}
     }
diff --git a/contrib/libreadline/misc.c b/contrib/libreadline/misc.c
index ab1e1337fd3a..403313a04350 100644
--- a/contrib/libreadline/misc.c
+++ b/contrib/libreadline/misc.c
@@ -276,12 +276,6 @@ rl_maybe_save_line ()
       _rl_saved_line_for_history->line = savestring (rl_line_buffer);
       _rl_saved_line_for_history->data = (char *)rl_undo_list;
     }
-  else if (STREQ (rl_line_buffer, _rl_saved_line_for_history->line) == 0)
-    {
-      free (_rl_saved_line_for_history->line);
-      _rl_saved_line_for_history->line = savestring (rl_line_buffer);
-      _rl_saved_line_for_history->data = (char *)rl_undo_list;	/* XXX possible memleak */
-    }
 
   return 0;
 }