[aat] More protection against buffer fail

2018-10-14 19:30:44 -07:00 · 2018-10-14 19:30:44 -07:00 · 7efa38257b
parent e1add2a275
commit 7efa38257b
1 changed files with 4 additions and 3 deletions
--- a/src/hb-aat-layout-common.hh
+++ b/src/hb-aat-layout-common.hh
@ -507,8 +507,9 @@ struct StateTableDriver

    if (!c->in_place)
    {
-      for (; buffer->idx < buffer->len;)
+      for (; buffer->successful && buffer->idx < buffer->len;)
 	buffer->next_glyph ();
+      if (likely (buffer->successful))
 	buffer->swap_buffers ();
    }
  }