From: Sandro Santilli <strk@keybit.net>
Date: Wed, 8 Feb 2012 09:36:46 +0000 (+0000)
Subject: Do not release serialized input until output is deserialized
X-Git-Tag: 2.0.0alpha4~10
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=770c718c21f2ee8cbf99969eceb7c9a52b9f15f2;p=postgis

Do not release serialized input until output is deserialized

See http://postgis.refractions.net/pipermail/postgis-devel/2012-February/018336.html

git-svn-id: http://svn.osgeo.org/postgis/trunk@9095 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/postgis/lwgeom_geos.c b/postgis/lwgeom_geos.c
index bc7dfc7e7..5f4e370b2 100644
--- a/postgis/lwgeom_geos.c
+++ b/postgis/lwgeom_geos.c
@@ -3493,16 +3493,17 @@ Datum ST_Split(PG_FUNCTION_ARGS)
 	lwgeom_out = lwgeom_split(lwgeom_in, lwblade_in);
 	lwgeom_free(lwgeom_in);
 	lwgeom_free(lwblade_in);
-	PG_FREE_IF_COPY(in, 0);
 	PG_FREE_IF_COPY(blade_in, 1);
 	
 	if ( ! lwgeom_out )
 	{
+		PG_FREE_IF_COPY(in, 0); /* possibly referenced by lwgeom_out */
 		PG_RETURN_NULL();
 	}
 
 	out = geometry_serialize(lwgeom_out);
 	lwgeom_free(lwgeom_out);
+	PG_FREE_IF_COPY(in, 0); /* possibly referenced by lwgeom_out */
 
 	PG_RETURN_POINTER(out);
 }