only release cairo stuff if we ever initialized it.
authoroetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Wed, 1 Aug 2007 15:29:09 +0000 (15:29 +0000)
committeroetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Wed, 1 Aug 2007 15:29:09 +0000 (15:29 +0000)
commita39d10a2244a55d5af2d1c4b10f318fed3397cd4
tree717570ba3f55e3a112b9b1fbc5682fd23dc8dda9
parent47cf8ef13bd1f404e6c4643c3b330ef3dd44585f
only release cairo stuff if we ever initialized it.

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1178 a5681a0c-68f1-0310-ab6d-d61299d08faa
src/rrd_graph.c