From 2302bc62ea28b88355ae6eb673eea2d814d082c8 Mon Sep 17 00:00:00 2001
From: wangmm0220 <wangmm0220@gmail.com>
Date: Wed, 25 Aug 2021 17:43:17 +0800
Subject: [PATCH] [TD-6167]<fix> process stmt is null in stmt_close

---
 src/client/src/tscPrepare.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/client/src/tscPrepare.c b/src/client/src/tscPrepare.c
index 030022b0fd..1ccdef1ced 100644
--- a/src/client/src/tscPrepare.c
+++ b/src/client/src/tscPrepare.c
@@ -1781,6 +1781,9 @@ int taos_stmt_set_tbname(TAOS_STMT* stmt, const char* name) {
 
 int taos_stmt_close(TAOS_STMT* stmt) {
   STscStmt* pStmt = (STscStmt*)stmt;
+  if (pStmt == NULL){
+    STMT_RET(TSDB_CODE_SUCCESS);
+  }
   if (!pStmt->isInsert) {
     SNormalStmt* normal = &pStmt->normal;
     if (normal->params != NULL) {
-- 
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