From 05c016b667cbc40c6ab045d4d028c5d4cce6f94d Mon Sep 17 00:00:00 2001
From: wangmm0220 <wangmm0220@gmail.com>
Date: Wed, 11 Oct 2023 13:55:54 +0800
Subject: [PATCH] fix:[TD-26671] judge if pointer is null to avoid core dump

---
 source/libs/wal/src/walRead.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/libs/wal/src/walRead.c b/source/libs/wal/src/walRead.c
index 885dbf11c8..c0435ca774 100644
--- a/source/libs/wal/src/walRead.c
+++ b/source/libs/wal/src/walRead.c
@@ -56,7 +56,7 @@ SWalReader *walOpenReader(SWal *pWal, SWalFilterCond *cond, int64_t id) {
 }
 
 void walCloseReader(SWalReader *pReader) {
-  if(pReader == NULL) return NULL;
+  if(pReader == NULL) return;
 
   taosCloseFile(&pReader->pIdxFile);
   taosCloseFile(&pReader->pLogFile);