From 18977191c8c83e652eaf0628fc134f8755a37394 Mon Sep 17 00:00:00 2001
From: caiyiming <caiyiming4@huawei.com>
Date: Thu, 16 Nov 2023 10:29:06 +0000
Subject: [PATCH] 1116

Signed-off-by: caiyiming <caiyiming4@huawei.com>
---
 libpurgeablemem/common/src/ux_page_table_c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libpurgeablemem/common/src/ux_page_table_c.c b/libpurgeablemem/common/src/ux_page_table_c.c
index 7dd5e4c..abde6f9 100644
--- a/libpurgeablemem/common/src/ux_page_table_c.c
+++ b/libpurgeablemem/common/src/ux_page_table_c.c
@@ -262,11 +262,11 @@ static void UxpteAdd(uxpte_t *pte, size_t incNum)
     uxpte_t old = 0;
     uxpte_t newVal = 0;
     do {
+        old = UxpteLoad(pte);
         if (old + incNum < old || old + incNum < incNum) {
             break;
         }
         newVal = old + incNum;
-        old = UxpteLoad(pte);
         if (ULONG_MAX - old < incNum) {
             return;
         }
-- 
Gitee