drop the dummy surface prior to creating the real one

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1468 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/rrd_graph.c b/src/rrd_graph.c
index 8019d7f..6f1a1ac 100644 (file)
--- a/src/rrd_graph.c
+++ b/src/rrd_graph.c
@@ -3059,6 +3059,7 @@ int graph_paint(
             (im->surface, CAIRO_SVG_VERSION_1_1);
         break;
     };
+    cairo_destroy(im->cr);
     im->cr = cairo_create(im->surface);
     cairo_set_antialias(im->cr, im->graph_antialias);
     cairo_scale(im->cr, im->zoom, im->zoom);