fix coverity scan defeats

source/dnode/vnode/src/meta/metaQuery.c

@@ -1107,6 +1107,7 @@ int32_t metaFilterTableIds(SMeta *pMeta, SMetaFltParam *param, SArray *pUids) {
       break;
     }
     STagIdxKey *p = entryKey;
+    if (p == NULL) break;
     if (p->type != pCursor->type) {
       if (first) {
         valid = param->reverse ? tdbTbcMoveToPrev(pCursor->pCur) : tdbTbcMoveToNext(pCursor->pCur);
@@ -1116,7 +1117,7 @@ int32_t metaFilterTableIds(SMeta *pMeta, SMetaFltParam *param, SArray *pUids) {
         break;
       }
     }
-    if (p == NULL || p->suid != pKey->suid) {
+    if (p->suid != pKey->suid) {
       break;
     }
     first = false;

source/dnode/vnode/src/meta/metaTable.c

@@ -1278,12 +1278,14 @@ static int metaUpdateTagIdx(SMeta *pMeta, const SMetaEntry *pCtbEntry) {
     ret = metaSaveJsonVarToIdx(pMeta, pCtbEntry, pTagColumn);
     goto end;
   }
-  if (metaCreateTagIdxKey(pCtbEntry->ctbEntry.suid, pTagColumn->colId, pTagData, nTagData, pTagColumn->type,
-                          pCtbEntry->uid, &pTagIdxKey, &nTagIdxKey) < 0) {
-    ret = -1;
-    goto end;
+  if (pTagData != NULL) {
+    if (metaCreateTagIdxKey(pCtbEntry->ctbEntry.suid, pTagColumn->colId, pTagData, nTagData, pTagColumn->type,
+                            pCtbEntry->uid, &pTagIdxKey, &nTagIdxKey) < 0) {
+      ret = -1;
+      goto end;
+    }
+    tdbTbUpsert(pMeta->pTagIdx, pTagIdxKey, nTagIdxKey, NULL, 0, &pMeta->txn);
   }
-  tdbTbUpsert(pMeta->pTagIdx, pTagIdxKey, nTagIdxKey, NULL, 0, &pMeta->txn);
 end:
   metaDestroyTagIdxKey(pTagIdxKey);
   tDecoderClear(&dc);

source/libs/index/src/indexJson.c

@@ -30,7 +30,7 @@ int indexJsonPut(SIndexJson *index, SIndexJsonMultiTerm *terms, uint64_t uid) {
     } else {
       p->colType = TSDB_DATA_TYPE_DOUBLE;
     }
-    IDX_TYPE_ADD_EXTERN_TYPE(p->colType, TSDB_DATA_TYPE_JSON);
+    IDX_TYPE_ADD_EXTERN_TYPE((p->colType), TSDB_DATA_TYPE_JSON);
   }
   // handle put
   return indexPut(index, terms, uid);

source/libs/transport/src/transCli.c

@@ -439,12 +439,14 @@ void cliHandleExceptImpl(SCliConn* pConn, int32_t code) {
       tDebug("%s conn %p construct ahandle %p by %s", CONN_GET_INST_LABEL(pConn), pConn, transMsg.info.ahandle,
              TMSG_INFO(transMsg.msgType));
       if (transMsg.info.ahandle == NULL) {
-        transMsg.info.ahandle = transCtxDumpBrokenlinkVal(&pConn->ctx, (int32_t*)&(transMsg.msgType));
+        int32_t msgType = 0;
+        transMsg.info.ahandle = transCtxDumpBrokenlinkVal(&pConn->ctx, &msgType);
+        transMsg.msgType = msgType;
         tDebug("%s conn %p construct ahandle %p due to brokenlink", CONN_GET_INST_LABEL(pConn), pConn,
                transMsg.info.ahandle);
       }
     } else {
-      transMsg.info.ahandle = (pMsg->type != Release && pCtx) ? pCtx->ahandle : NULL;
+      transMsg.info.ahandle = (pMsg != NULL && pMsg->type != Release && pCtx) ? pCtx->ahandle : NULL;
     }
 
     if (pCtx == NULL || pCtx->pSem == NULL) {
@@ -1078,9 +1080,6 @@ static void cliPrepareCb(uv_prepare_t* handle) {
       QUEUE_REMOVE(h);
 
       SCliMsg* pMsg = QUEUE_DATA(h, SCliMsg, q);
-      if (pMsg == NULL) {
-        continue;
-      }
       (*cliAsyncHandle[pMsg->type])(pMsg, thrd);
       count++;
     }