From ecfdb6641793bab922e1842ee372cf29f4ef44d6 Mon Sep 17 00:00:00 2001
From: Tim Edwards <tim@opencircuitdesign.com>
Date: Thu, 31 Oct 2019 15:19:30 -0400
Subject: [PATCH] Corrected one error in the recent fix for port enumeration in
 ext2spice (hierarchy on), where the port index was not checked for value -1
 (no port) before indexing into the port list.

---
 ext2spice/ext2spice.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ext2spice/ext2spice.c b/ext2spice/ext2spice.c
index 168959cf..65eb7326 100644
--- a/ext2spice/ext2spice.c
+++ b/ext2spice/ext2spice.c
@@ -1485,6 +1485,7 @@ subcktVisit(use, hierName, is_top)
 		char *pname;
 
 		portidx = nodeName->efnn_port;
+		if (portidx < 0) continue;
 		if (nodeList[portidx] == NULL)
 		{
 		    nodeList[portidx] = nodeName;