fix:error by coverity scan

source/client/src/clientImpl.c

@@ -192,7 +192,7 @@ int32_t buildRequest(uint64_t connId, const char* sql, int sqlLen, void* param,
   (*pRequest)->sqlLen = sqlLen;
   (*pRequest)->validateOnly = validateSql;
 
-  SSyncQueryParam* newpParam;
+  SSyncQueryParam* newpParam = NULL;
   if (param == NULL) {
     newpParam = taosMemoryCalloc(1, sizeof(SSyncQueryParam));
     if (newpParam == NULL) {
@@ -1545,7 +1545,7 @@ void* doFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4)
     }
 
     pRequest->code =
-        setQueryResultFromRsp(&pRequest->body.resInfo, (SRetrieveTableRsp*)pResInfo->pData, convertUcs4, true);
+        setQueryResultFromRsp(&pRequest->body.resInfo, (const SRetrieveTableRsp*)pResInfo->pData, convertUcs4, true);
     if (pRequest->code != TSDB_CODE_SUCCESS) {
       pResultInfo->numOfRows = 0;
       return NULL;

source/client/src/clientMain.c

@@ -1016,7 +1016,7 @@ static void fetchCallback(void *pResult, void *param, int32_t code) {
   }
 
   pRequest->code =
-      setQueryResultFromRsp(pResultInfo, (SRetrieveTableRsp *)pResultInfo->pData, pResultInfo->convertUcs4, true);
+      setQueryResultFromRsp(pResultInfo, (const SRetrieveTableRsp *)pResultInfo->pData, pResultInfo->convertUcs4, true);
   if (pRequest->code != TSDB_CODE_SUCCESS) {
     pResultInfo->numOfRows = 0;
     pRequest->code = code;

source/client/src/clientMsgHandler.c

@@ -480,6 +480,9 @@ int32_t processShowVariablesRsp(void* param, SDataBuf* pMsg, int32_t code) {
       code = setQueryResultFromRsp(&pRequest->body.resInfo, pRes, false, true);
     }
 
+    if(code != 0){
+      taosMemoryFree(pRes);
+    }
     tFreeSShowVariablesRsp(&rsp);
   }
 

source/client/src/clientSml.c

@@ -1154,13 +1154,16 @@ static int32_t smlParseLineBottom(SSmlHandle *info) {
     SSmlLineInfo  *elements = info->lines + i;
     SSmlTableInfo *tinfo = NULL;
     if (info->protocol == TSDB_SML_LINE_PROTOCOL) {
-      tinfo = *(SSmlTableInfo **)taosHashGet(info->childTables, elements->measure, elements->measureTagsLen);
+      SSmlTableInfo** tmp = (SSmlTableInfo **)taosHashGet(info->childTables, elements->measure, elements->measureTagsLen);
+      if(tmp) tinfo = *tmp;
     } else if (info->protocol == TSDB_SML_TELNET_PROTOCOL) {
-      tinfo = *(SSmlTableInfo **)taosHashGet(info->childTables, elements->measureTag,
+      SSmlTableInfo** tmp = (SSmlTableInfo **)taosHashGet(info->childTables, elements->measureTag,
                                              elements->measureLen + elements->tagsLen);
+      if(tmp) tinfo = *tmp;
     } else {
-      tinfo = *(SSmlTableInfo **)taosHashGet(info->childTables, elements->measureTag,
+      SSmlTableInfo** tmp = (SSmlTableInfo **)taosHashGet(info->childTables, elements->measureTag,
                                              elements->measureLen + elements->tagsLen);
+      if(tmp) tinfo = *tmp;
     }
 
     if (tinfo == NULL) {

source/client/src/clientSmlJson.c

@@ -1279,10 +1279,11 @@ int32_t smlParseJSON(SSmlHandle *info, char *payload) {
       if (cnt >= payloadNum) {
         payloadNum = payloadNum << 1;
         void *tmp = taosMemoryRealloc(info->lines, payloadNum * sizeof(SSmlLineInfo));
-        if (tmp != NULL) {
-          info->lines = (SSmlLineInfo *)tmp;
-          memset(info->lines + cnt, 0, (payloadNum - cnt) * sizeof(SSmlLineInfo));
+        if (tmp == NULL) {
+          return TSDB_CODE_OUT_OF_MEMORY;
         }
+        info->lines = (SSmlLineInfo *)tmp;
+        memset(info->lines + cnt, 0, (payloadNum - cnt) * sizeof(SSmlLineInfo));
       }
       ret = smlParseJSONString(info, &dataPointStart, info->lines + cnt);
       if ((info->lines + cnt)->measure == NULL) break;

source/dnode/mnode/impl/src/mndConsumer.c

@@ -674,7 +674,7 @@ SUBSCRIBE_OVER:
     taosMemoryFree(pConsumerNew);
   }
   // TODO: replace with destroy subscribe msg
-  if (subscribe.topicNames) taosArrayDestroyP(subscribe.topicNames, (FDelete)taosMemoryFree);
+  taosArrayDestroyP(subscribe.topicNames, (FDelete)taosMemoryFree);
   return code;
 }
 

source/dnode/mnode/impl/src/mndScheduler.c

@@ -115,7 +115,7 @@ int32_t mndAddDispatcherToInnerTask(SMnode* pMnode, SStreamObj* pStream, SStream
 
   if (pStream->fixedSinkVgId == 0) {
     SDbObj* pDb = mndAcquireDb(pMnode, pStream->targetDb);
-    if (pDb->cfg.numOfVgroups > 1) {
+    if (pDb != NULL && pDb->cfg.numOfVgroups > 1) {
       isShuffle = true;
       pTask->outputType = TASK_OUTPUT__SHUFFLE_DISPATCH;
       pTask->dispatchMsgType = TDMT_STREAM_TASK_DISPATCH;

source/dnode/mnode/impl/src/mndShow.c

@@ -134,7 +134,7 @@ static SShowObj *mndCreateShowObj(SMnode *pMnode, SRetrieveTableReq *pReq) {
   showObj.pMnode = pMnode;
   showObj.type = convertToRetrieveType(pReq->tb, tListLen(pReq->tb));
   memcpy(showObj.db, pReq->db, TSDB_DB_FNAME_LEN);
-  strncpy(showObj.filterTb, pReq->filterTb, TSDB_TABLE_NAME_LEN);
+  tstrncpy(showObj.filterTb, pReq->filterTb, TSDB_TABLE_NAME_LEN);
 
   int32_t   keepTime = tsShellActivityTimer * 6 * 1000;
   SShowObj *pShow = taosCachePut(pMgmt->cache, &showId, sizeof(int64_t), &showObj, size, keepTime);

source/dnode/vnode/src/tq/tq.c

@@ -1335,12 +1335,8 @@ int32_t tqProcessDelReq(STQ* pTq, void* pReq, int32_t len, int64_t ver) {
     }
   }
 
-  int32_t ref = atomic_sub_fetch_32(pRef, 1);
-  /*A(ref >= 0);*/
-  if (ref == 0) {
-    blockDataDestroy(pDelBlock);
-    taosMemoryFree(pRef);
-  }
+  blockDataDestroy(pDelBlock);
+  taosMemoryFree(pRef);
 
 #if 0
     SStreamDataBlock* pStreamBlock = taosAllocateQitem(sizeof(SStreamDataBlock), DEF_QITEM, 0);

source/dnode/vnode/src/tq/tqMeta.c

@@ -269,6 +269,7 @@ int32_t tqMetaDeleteHandle(STQ* pTq, const char* key) {
 }
 
 int32_t tqMetaRestoreHandle(STQ* pTq) {
+  int code = 0;
   TBC* pCur = NULL;
   if (tdbTbcOpen(pTq->pExecStore, &pCur, NULL) < 0) {
     return -1;
@@ -290,7 +291,8 @@ int32_t tqMetaRestoreHandle(STQ* pTq) {
 
     handle.pRef = walOpenRef(pTq->pVnode->pWal);
     if (handle.pRef == NULL) {
-      return -1;
+      code = -1;
+      goto end;
     }
     walRefVer(handle.pRef, handle.snapshotVer);
 
@@ -307,16 +309,21 @@ int32_t tqMetaRestoreHandle(STQ* pTq) {
           qCreateQueueExecTaskInfo(handle.execHandle.execCol.qmsg, &reader, &handle.execHandle.numOfCols, NULL);
       if (handle.execHandle.task == NULL) {
         tqError("cannot create exec task for %s", handle.subKey);
-        return -1;
+        code = -1;
+        goto end;
       }
       void* scanner = NULL;
       qExtractStreamScanner(handle.execHandle.task, &scanner);
       if (scanner == NULL) {
         tqError("cannot extract stream scanner for %s", handle.subKey);
+        code = -1;
+        goto end;
       }
       handle.execHandle.pExecReader = qExtractReaderFromStreamScanner(scanner);
       if (handle.execHandle.pExecReader == NULL) {
         tqError("cannot extract exec reader for %s", handle.subKey);
+        code = -1;
+        goto end;
       }
     } else if (handle.execHandle.subType == TOPIC_SUB_TYPE__DB) {
       handle.pWalReader = walOpenReader(pTq->pVnode->pWal, NULL);
@@ -347,8 +354,9 @@ int32_t tqMetaRestoreHandle(STQ* pTq) {
     taosHashPut(pTq->pHandle, pKey, kLen, &handle, sizeof(STqHandle));
   }
 
+end:
   tdbFree(pKey);
   tdbFree(pVal);
   tdbTbcClose(pCur);
-  return 0;
+  return code;
 }

source/dnode/vnode/src/tq/tqSink.c

@@ -370,11 +370,6 @@ int32_t tqPutReqToQueue(SVnode* pVnode, SVCreateTbBatchReq* pReqs) {
   }
 
   return TSDB_CODE_SUCCESS;
-
-_error:
-  terrno = TSDB_CODE_OUT_OF_MEMORY;
-  tqError("failed to encode submit req since %s", terrstr());
-  return TSDB_CODE_OUT_OF_MEMORY;
 }
 
 void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void* data) {
@@ -441,9 +436,6 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
       for (int32_t rowId = 0; rowId < rows; rowId++) {
         SVCreateTbReq  createTbReq = {0};
         SVCreateTbReq* pCreateTbReq = &createTbReq;
-        if (!pCreateTbReq) {
-          goto _end;
-        }
 
         // set const
         pCreateTbReq->flags = 0;
@@ -460,6 +452,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
         if (size == 2) {
           tagArray = taosArrayInit(1, sizeof(STagVal));
           if (!tagArray) {
+            tdDestroySVCreateTbReq(pCreateTbReq);
             goto _end;
           }
           STagVal tagVal = {
@@ -477,6 +470,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
         } else {
           tagArray = taosArrayInit(size - 1, sizeof(STagVal));
           if (!tagArray) {
+            tdDestroySVCreateTbReq(pCreateTbReq);
             goto _end;
           }
           for (int32_t tagId = UD_TAG_COLUMN_INDEX, step = 1; tagId < size; tagId++, step++) {
@@ -503,6 +497,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
         tTagNew(tagArray, 1, false, &pTag);
         tagArray = taosArrayDestroy(tagArray);
         if (pTag == NULL) {
+          tdDestroySVCreateTbReq(pCreateTbReq);
           terrno = TSDB_CODE_OUT_OF_MEMORY;
           goto _end;
         }
@@ -558,6 +553,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
         SVCreateTbReq* pCreateTbReq = NULL;
 
         if (!(pCreateTbReq = taosMemoryCalloc(1, sizeof(SVCreateStbReq)))) {
+          taosMemoryFree(ctbName);
           goto _end;
         };
 
@@ -574,6 +570,8 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
         // set tag content
         tagArray = taosArrayInit(1, sizeof(STagVal));
         if (!tagArray) {
+          taosMemoryFree(ctbName);
+          tdDestroySVCreateTbReq(pCreateTbReq);
           goto _end;
         }
         STagVal tagVal = {
@@ -589,6 +587,8 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
         tagArray = taosArrayDestroy(tagArray);
         if (pTag == NULL) {
           terrno = TSDB_CODE_OUT_OF_MEMORY;
+          taosMemoryFree(ctbName);
+          tdDestroySVCreateTbReq(pCreateTbReq);
           goto _end;
         }
         pCreateTbReq->ctb.pTag = (uint8_t*)pTag;
@@ -620,7 +620,6 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
                   ", actual suid %" PRId64 "",
                   TD_VID(pVnode), ctbName, suid, mr.me.ctbEntry.suid);
           metaReaderClear(&mr);
-          taosMemoryFree(ctbName);
         }
 
         tbData.uid = mr.me.uid;
@@ -631,6 +630,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
       // rows
       if (!pVals && !(pVals = taosArrayInit(pTSchema->numOfCols, sizeof(SColVal)))) {
         taosArrayDestroy(tbData.aRowP);
+        tdDestroySVCreateTbReq(tbData.pCreateTbReq);
         goto _end;
       }
 
@@ -681,6 +681,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
 
       SSubmitReq2 submitReq = {0};
       if (!(submitReq.aSubmitTbData = taosArrayInit(1, sizeof(SSubmitTbData)))) {
+        tDestroySSubmitTbData(&tbData, TSDB_MSG_FLG_ENCODE);
         goto _end;
       }
 
@@ -694,6 +695,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
       len += sizeof(SSubmitReq2Msg);
       pBuf = rpcMallocCont(len);
       if (NULL == pBuf) {
+        tDestroySSubmitReq2(&submitReq, TSDB_MSG_FLG_ENCODE);
         goto _end;
       }
       ((SSubmitReq2Msg*)pBuf)->header.vgId = TD_VID(pVnode);
@@ -705,6 +707,7 @@ void tqSinkToTablePipeline2(SStreamTask* pTask, void* vnode, int64_t ver, void*
         tqError("failed to encode submit req since %s", terrstr());
         tEncoderClear(&encoder);
         rpcFreeCont(pBuf);
+        tDestroySSubmitReq2(&submitReq, TSDB_MSG_FLG_ENCODE);
         continue;
       }
       tEncoderClear(&encoder);

utils/test/c/sml_test.c

@@ -215,8 +215,8 @@ int smlProcess_json3_Test() {
   taos_free_result(pRes);
 
   const char *sql[] = {
-      "[{\"metric\":\"sys.cpu.nice3\",\"timestamp\":0,\"value\":\"18\",\"tags\":{\"host\":\"web01\",\"id\":\"t1\","
-      "\"dc\":\"lga\"}}]"};
+      "[{\"metric\":\"sys.cpu.nice3\",\"timestamp\":0,\"value\":\"18\",\"tags\":{\"host\":\"web01\",\"id\":\"t1\",\"dc\":\"lga\"}}]"
+  };
   char *sql1[1] = {0};
   for (int i = 0; i < 1; i++) {
     sql1[i] = taosMemoryCalloc(1, 1024);

utils/test/c/tmqSim.c

@@ -855,7 +855,9 @@ void loop_consume(SThreadInfo* pInfo) {
   taosFprintfFile(g_fp, "==== consumerId: %d, consumeMsgCnt: %" PRId64 ", consumeRowCnt: %" PRId64 "\n",
                   pInfo->consumerId, pInfo->consumeMsgCnt, pInfo->consumeRowCnt);
 
-  taosFsyncFile(pInfo->pConsumeRowsFile);
+  if(taosFsyncFile(pInfo->pConsumeRowsFile) < 0){
+    printf("taosFsyncFile error:%s", strerror(errno));
+  }
   taosCloseFile(&pInfo->pConsumeRowsFile);
 }