From f0caa7d190e51af9ba4a487dc371b56174d56f31 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Sun, 5 Jul 2009 19:18:24 +0000
Subject: Make optimizer registration fail if a canvas has already been written
 to.

---
 libdimension/png.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'libdimension/png.c')

diff --git a/libdimension/png.c b/libdimension/png.c
index c8ffc62..76308ca 100644
--- a/libdimension/png.c
+++ b/libdimension/png.c
@@ -54,7 +54,10 @@ dmnsn_png_optimize_canvas(dmnsn_canvas *canvas)
     return 1;
   }
 
-  dmnsn_optimize_canvas(canvas, optimizer);
+  if (dmnsn_optimize_canvas(canvas, optimizer) != 0) {
+    free(optimizer.ptr);
+    return 1;
+  }
 
   return 0;
 }
-- 
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