diff --git a/source/dnode/vnode/src/tsdb/tsdbRead2.c b/source/dnode/vnode/src/tsdb/tsdbRead2.c
index 0af88e8551..97be3cde85 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead2.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead2.c
@@ -4608,11 +4608,13 @@ static void freeSchemaFunc(void* param) {
 }
 
 static void clearSharedPtr(STsdbReader* p) {
-  p->status.pTableMap = NULL;
-  p->status.uidList.tableUidList = NULL;
-  p->info.pSchema = NULL;
-  p->pReadSnap = NULL;
-  p->pSchemaMap = NULL;
+  if (p) {
+    p->status.pTableMap = NULL;
+    p->status.uidList.tableUidList = NULL;
+    p->info.pSchema = NULL;
+    p->pReadSnap = NULL;
+    p->pSchemaMap = NULL;
+  }
 }
 
 static int32_t setSharedPtr(STsdbReader* pDst, const STsdbReader* pSrc) {