avoid invalid read

src/client/src/tscUtil.c

@@ -458,14 +458,14 @@ void tscFreeRegisteredSqlObj(void *pSql) {
   SSqlObj* p = *(SSqlObj**)pSql;
   STscObj* pTscObj = p->pTscObj;
 
+  int32_t num   = atomic_sub_fetch_32(&pTscObj->numOfObj, 1);
+  int32_t total = atomic_sub_fetch_32(&tscNumOfObj, 1);
+  tscDebug("%p free SqlObj, total in tscObj:%d, total:%d", pSql, num, total);
   assert(RID_VALID(p->self));
 
   tscFreeSqlObj(p);
   taosReleaseRef(tscRefId, pTscObj->rid);
 
-  int32_t num   = atomic_sub_fetch_32(&pTscObj->numOfObj, 1);
-  int32_t total = atomic_sub_fetch_32(&tscNumOfObj, 1);
-  tscDebug("%p free SqlObj, total in tscObj:%d, total:%d", pSql, num, total);
 }
 
 void tscFreeTableMetaHelper(void *pTableMeta) {