From 1b60c522b02c07bfdd6e283979acff5c784d1b15 Mon Sep 17 00:00:00 2001
From: hong <hongling-0@qq.com>
Date: Sat, 25 May 2019 15:32:51 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AD=97=E7=AC=A6=E4=B8=B2=E5=BC=95=E7=94=A8?=
 =?UTF-8?q?=E8=AE=A1=E6=95=B0BUG?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 3rd/lua/lstring.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/3rd/lua/lstring.c b/3rd/lua/lstring.c
index 7ad062f9..1fcf8ca3 100644
--- a/3rd/lua/lstring.c
+++ b/3rd/lua/lstring.c
@@ -335,8 +335,11 @@ markref(struct ssm_ref *r, TString *s, int changeref) {
 	unsigned int h = s->hash;
 	int slot = lmod(h, r->hsize);
 	TString * hs = r->hash[slot];
-	if (hs == s)
+	if (hs == s){
+		if (changeref)
+			DEC_SREF(s);
 		return;
+	}
 	++r->nuse;
 	if (r->nuse >= r->hsize && r->hsize <= MAX_INT/2) {
 		expand_ref(r, changeref);
@@ -346,6 +349,8 @@ markref(struct ssm_ref *r, TString *s, int changeref) {
 	if (hs != NULL) {
 		if (hs == s) {
 			--r->nuse;
+			if (changeref)
+				DEC_SREF(s);
 			return;
 		}
 		insert_ref(r, hs);