# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1318655170 -10800
# Node ID b4b7198986a6ddadc14702da614f9c1a181999dc
# Parent  3941e82b07f24150282ce9ba6243f468cfa233df
fixed a potential null dereference when deleting a bug in the redblack tree

diff -r 3941e82b07f2 -r b4b7198986a6 src/rbtree.c
--- a/src/rbtree.c	Sat Oct 15 07:45:56 2011 +0300
+++ b/src/rbtree.c	Sat Oct 15 08:06:10 2011 +0300
@@ -248,7 +248,9 @@
 	del_tree(node->left, delfunc, cls);
 	del_tree(node->right, delfunc, cls);
 
-	delfunc(node, cls);
+	if(delfunc) {
+		delfunc(node, cls);
+	}
 	free(node);
 }