[gegl] buffer: fix logic error in TileStorage reuse

[Michael Murà <mmure src gnome org>]

commit 9a67126a8adf8a2f309f6681fc4a6b0ce4afd0f9
Author: Michael Murà <mure michael gmail com>
Date:   Thu Sep 13 01:03:38 2012 +0900

    buffer: fix logic error in TileStorage reuse

 gegl/buffer/gegl-buffer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gegl/buffer/gegl-buffer.c b/gegl/buffer/gegl-buffer.c
index d4ccc68..4d46019 100644
--- a/gegl/buffer/gegl-buffer.c
+++ b/gegl/buffer/gegl-buffer.c
@@ -1238,7 +1238,7 @@ gegl_tile_storage_new_cached (gint tile_width, gint tile_height,
       if (item->babl_fmt == babl_fmt &&
           item->tile_width == tile_width &&
           item->tile_height == tile_height &&
-          item->ram == item->ram)
+          item->ram == use_ram)
        {
          storage = item->storage;
          storage_cache = g_slist_remove (storage_cache, item);