Index: trunk/src/data.c
===================================================================
--- trunk/src/data.c	(revision 30248)
+++ trunk/src/data.c	(revision 30249)
@@ -165,6 +165,7 @@
 {
 	pcb_layer_t *layer;
 	int i, is_subc;
+	long l;
 
 	is_subc = (data->parent_type == PCB_PARENT_SUBC);
 
@@ -193,6 +194,10 @@
 
 	htip_uninit(&data->id2obj);
 
+	for(l = 0; l < data->ps_protos.used; l++)
+		pcb_pstk_proto_free_fields(&data->ps_protos.array[l]);
+	pcb_vtpadstack_proto_uninit(&data->ps_protos);
+
 	memset(data, 0, sizeof(pcb_data_t));
 }