fix: coverity issues

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

@@ -201,12 +201,14 @@ static SSdbRow *mndSmaActionDecode(SSdbRaw *pRaw) {
   terrno = 0;
 
 _OVER:
-  if (terrno != 0 && pSma != NULL) {
-    mError("sma:%s, failed to decode from raw:%p since %s", pSma->name, pRaw, terrstr());
-    taosMemoryFreeClear(pSma->expr);
-    taosMemoryFreeClear(pSma->tagsFilter);
-    taosMemoryFreeClear(pSma->sql);
-    taosMemoryFreeClear(pSma->ast);
+  if (terrno != 0) {
+    if (pSma != NULL) {
+      mError("sma:%s, failed to decode from raw:%p since %s", pSma->name, pRaw, terrstr());
+      taosMemoryFreeClear(pSma->expr);
+      taosMemoryFreeClear(pSma->tagsFilter);
+      taosMemoryFreeClear(pSma->sql);
+      taosMemoryFreeClear(pSma->ast);
+    }
     taosMemoryFreeClear(pRow);
     return NULL;
   }

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

@@ -271,6 +271,11 @@ SSyncFSM *mndSyncMakeFsm(SMnode *pMnode) {
 int32_t mndInitSync(SMnode *pMnode) {
   SSyncMgmt *pMgmt = &pMnode->syncMgmt;
   taosThreadMutexInit(&pMgmt->lock, NULL);
+  taosThreadMutexLock(&pMgmt->lock);
+  pMgmt->transId = 0;
+  pMgmt->transSec = 0;
+  pMgmt->transSeq = 0;
+  taosThreadMutexUnlock(&pMgmt->lock);
 
   SSyncInfo syncInfo = {
       .snapshotStrategy = SYNC_STRATEGY_STANDARD_SNAPSHOT,

source/util/src/tworker.c

@@ -227,8 +227,8 @@ STaosQueue *tAutoQWorkerAllocQueue(SAutoQWorkerPool *pool, void *ahandle, FItem
       uError("worker:%s:%d failed to create", pool->name, curWorkerNum);
       taosMemoryFree(worker);
       taosCloseQueue(queue);
-      terrno = TSDB_CODE_OUT_OF_MEMORY;
       taosThreadMutexUnlock(&pool->mutex);
+      terrno = TSDB_CODE_OUT_OF_MEMORY;
       return NULL;
     }
     worker->id = curWorkerNum;