From 99d451f5c5d4d62fb4a4b2e728c74448eef16201 Mon Sep 17 00:00:00 2001
From: duerst <duerst@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 27 Nov 2018 21:23:11 +0000
Subject: [PATCH] correctly handle return value from create_sequence_node()

In function node_extended_grapheme_cluster(), store and test
return value from create_sequence_node(). Never forget this!

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66045 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 regparse.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/regparse.c b/regparse.c
index 2a53c4a03c..5305d182d5 100644
--- a/regparse.c
+++ b/regparse.c
@@ -5912,7 +5912,8 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
       if (r != 0) goto err;
 
       seq[3] = NULL_NODE;
-      create_sequence_node(&list2, seq);
+      r = create_sequence_node(&list2, seq);
+      if (r != 0) goto err;
     }
 
     tmp = onig_node_new_alt(list2, alt);