fix coverity issue

src/query/src/qExecutor.c

@@ -5153,9 +5153,7 @@ static int32_t convertQueryMsg(SQueryTableMsg *pQueryMsg, SArray **pTableIdList,
   }
 
   if (!validateQuerySourceCols(pQueryMsg, *pExpr)) {
-    tfree(*pExpr);
-
-    return TSDB_CODE_QRY_INVALID_MSG;
+    goto _cleanup;
   }
 
   pMsg = createTableIdList(pQueryMsg, pMsg, pTableIdList);
@@ -5227,8 +5225,17 @@ static int32_t convertQueryMsg(SQueryTableMsg *pQueryMsg, SArray **pTableIdList,
          pQueryMsg, pQueryMsg->numOfTables, pQueryMsg->queryType, pQueryMsg->window.skey, pQueryMsg->window.ekey, pQueryMsg->numOfGroupCols,
          pQueryMsg->order, pQueryMsg->numOfOutput, pQueryMsg->numOfCols, pQueryMsg->intervalTime,
          pQueryMsg->fillType, pQueryMsg->tsLen, pQueryMsg->tsNumOfBlocks, pQueryMsg->limit, pQueryMsg->offset);
-
   return 0;
+
+_cleanup:
+  tfree(*pExpr);
+  taosArrayDestroy(*pTableIdList);
+  *pTableIdList = NULL;
+  tfree(*tbnameCond);
+  tfree(*groupbyCols);
+  tfree(*tagCols);
+  tfree(*tagCond);
+  return TSDB_CODE_QRY_INVALID_MSG; 
 }
 
 static int32_t buildAirthmeticExprFromMsg(SExprInfo *pArithExprInfo, SQueryTableMsg *pQueryMsg) {
@@ -5494,6 +5501,8 @@ static int compareTableIdInfo(const void* a, const void* b) {
   return 0;
 }
 
+static void freeQInfo(SQInfo *pQInfo);
+
 static SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SArray* pTableIdList, SSqlGroupbyExpr *pGroupbyExpr, SExprInfo *pExprs,
                                STableGroupInfo *pTableGroupInfo, SColumnInfo* pTagCols) {
   SQInfo *pQInfo = (SQInfo *)calloc(1, sizeof(SQInfo));
@@ -5634,22 +5643,27 @@ static SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SArray* pTableIdList,
   return pQInfo;
 
 _cleanup:
-  tfree(pQuery->fillVal);
+  //tfree(pQuery->fillVal);
 
-  if (pQuery->sdata != NULL) {
-    for (int16_t col = 0; col < pQuery->numOfOutput; ++col) {
-      tfree(pQuery->sdata[col]);
-    }
-  }
+  //if (pQuery->sdata != NULL) {
+  //  for (int16_t col = 0; col < pQuery->numOfOutput; ++col) {
+  //    tfree(pQuery->sdata[col]);
+  //  }
+  //}
 
-  tfree(pQuery->sdata);
-  tfree(pQuery->pFilterInfo);
-  tfree(pQuery->colList);
+  //
+  //tfree(pQuery->sdata);
+  //tfree(pQuery->pFilterInfo);
+  //tfree(pQuery->colList);
 
-  tfree(pExprs);
-  tfree(pGroupbyExpr);
+  //tfree(pExprs);
+  //tfree(pGroupbyExpr);
 
-  tfree(pQInfo);
+  //taosArrayDestroy(pQInfo->arrTableIdInfo);
+  //tsdbDestoryTableGroup(&pQInfo->tableGroupInfo);
+  // 
+  //tfree(pQInfo);
+  freeQInfo(pQInfo);
 
   return NULL;
 }
@@ -5668,7 +5682,6 @@ static bool isValidQInfo(void *param) {
   return (sig == (uint64_t)pQInfo);
 }
 
-static void freeQInfo(SQInfo *pQInfo);
 
 static int32_t initQInfo(SQueryTableMsg *pQueryMsg, void *tsdb, int32_t vgId, SQInfo *pQInfo, bool isSTable) {
   int32_t code = TSDB_CODE_SUCCESS;
@@ -5889,6 +5902,7 @@ int32_t qCreateQueryInfo(void *tsdb, int32_t vgId, SQueryTableMsg *pQueryMsg, qi
 
   SExprInfo *pExprs = NULL;
   if ((code = createQFunctionExprFromMsg(pQueryMsg, &pExprs, pExprMsg, pTagColumnInfo)) != TSDB_CODE_SUCCESS) {
+    tfree(pExprMsg);
     goto _over;
   }
 
@@ -5939,6 +5953,10 @@ int32_t qCreateQueryInfo(void *tsdb, int32_t vgId, SQueryTableMsg *pQueryMsg, qi
   }
 
   (*pQInfo) = createQInfoImpl(pQueryMsg, pTableIdList, pGroupbyExpr, pExprs, &tableGroupInfo, pTagColumnInfo);
+  pExprs = NULL;
+  pGroupbyExpr = NULL;
+  pTagColumnInfo = NULL;
+  
   if ((*pQInfo) == NULL) {
     code = TSDB_CODE_QRY_OUT_OF_MEMORY;
     goto _over;
@@ -5950,6 +5968,12 @@ _over:
   tfree(tagCond);
   tfree(tbnameCond);
   tfree(pGroupColIndex);
+  if (pGroupbyExpr != NULL) {
+    taosArrayDestroy(pGroupbyExpr->columnInfo);
+    tfree(pGroupbyExpr);
+  } 
+  tfree(pTagColumnInfo);
+  tfree(pExprs);
   taosArrayDestroy(pTableIdList);
 
   //pQInfo already freed in initQInfo, but *pQInfo may not pointer to null;

src/query/src/qUtil.c

@@ -138,7 +138,7 @@ void clearFirstNTimeWindow(SQueryRuntimeEnv *pRuntimeEnv, int32_t num) {
     SWindowResult *pResult = &pWindowResInfo->pResult[k];
     int32_t *p = (int32_t *)taosHashGet(pWindowResInfo->hashList, (const char *)&pResult->window.skey,
         tDataTypeDesc[pWindowResInfo->type].nSize);
-    
+    assert(p != NULL); 
     int32_t  v = (*p - num);
     assert(v >= 0 && v <= pWindowResInfo->size);
     taosHashPut(pWindowResInfo->hashList, (char *)&pResult->window.skey, tDataTypeDesc[pWindowResInfo->type].nSize,

src/query/src/qpercentile.c

@@ -879,8 +879,8 @@ double getPercentileImpl(tMemBucket *pMemBucket, int32_t count, double fraction)
           UNUSED(ret);
 
           for (uint32_t jx = 0; jx < pFlushInfo->numOfPages; ++jx) {
-            ret = fread(pPage, pMemBuffer->pageSize, 1, pMemBuffer->file);
-            UNUSED(ret);
+            size_t sz = fread(pPage, pMemBuffer->pageSize, 1, pMemBuffer->file);
+            UNUSED(sz);
             tMemBucketPut(pMemBucket, pPage->data, pPage->num);
           }
 
@@ -965,10 +965,11 @@ char *getFirstElemOfMemBuffer(tMemBucketSegment *pSeg, int32_t slotIdx, tFilePag
      */
     tFlushoutInfo *pFlushInfo = &pMemBuffer->fileMeta.flushoutData.pFlushoutInfo[0];
     assert(pFlushInfo->numOfPages == pMemBuffer->fileMeta.nFileSize);
-
-    fseek(pMemBuffer->file, pFlushInfo->startPageId * pMemBuffer->pageSize, SEEK_SET);
-    size_t ret = fread(pPage, pMemBuffer->pageSize, 1, pMemBuffer->file);
+    int32_t ret;
+    ret = fseek(pMemBuffer->file, pFlushInfo->startPageId * pMemBuffer->pageSize, SEEK_SET);
     UNUSED(ret);
+    size_t sz = fread(pPage, pMemBuffer->pageSize, 1, pMemBuffer->file);
+    UNUSED(sz);
     thisVal = pPage->data;
   }
   return thisVal;

src/query/src/qtsbuf.c

@@ -65,8 +65,10 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
   
   // validate the file magic number
   STSBufFileHeader header = {0};
-  fseek(pTSBuf->f, 0, SEEK_SET);
-  fread(&header, 1, sizeof(STSBufFileHeader), pTSBuf->f);
+  int32_t ret = fseek(pTSBuf->f, 0, SEEK_SET);
+  UNUSED(ret);
+  size_t sz = fread(&header, 1, sizeof(STSBufFileHeader), pTSBuf->f);
+  UNUSED(sz);
 
   // invalid file
   if (header.magic != TS_COMP_FILE_MAGIC) {
@@ -97,22 +99,30 @@ STSBuf* tsBufCreateFromFile(const char* path, bool autoDelete) {
   size_t infoSize = sizeof(STSVnodeBlockInfo) * pTSBuf->numOfVnodes;
   
   STSVnodeBlockInfo* buf = (STSVnodeBlockInfo*)calloc(1, infoSize);
+  if (buf == NULL) {
+    tsBufDestory(pTSBuf);
+    return NULL; 
+  } 
   
   //int64_t pos = ftell(pTSBuf->f); //pos not used
-  fread(buf, infoSize, 1, pTSBuf->f);
+  sz = fread(buf, infoSize, 1, pTSBuf->f);
+  UNUSED(sz);
   
   // the length value for each vnode is not kept in file, so does not set the length value
   for (int32_t i = 0; i < pTSBuf->numOfVnodes; ++i) {
     STSVnodeBlockInfoEx* pBlockList = &pTSBuf->pData[i];
     memcpy(&pBlockList->info, &buf[i], sizeof(STSVnodeBlockInfo));
   }
-  
   free(buf);
   
-  fseek(pTSBuf->f, 0, SEEK_END);
+  ret = fseek(pTSBuf->f, 0, SEEK_END);
+  UNUSED(ret);
   
   struct stat fileStat;
-  fstat(fileno(pTSBuf->f), &fileStat);
+  if (fstat(fileno(pTSBuf->f), &fileStat) != 0) {
+    tsBufDestory(pTSBuf);
+    return NULL;
+  }
   
   pTSBuf->fileSize = (uint32_t)fileStat.st_size;
   tsBufResetPos(pTSBuf);
@@ -278,19 +288,24 @@ STSBlock* readDataFromDisk(STSBuf* pTSBuf, int32_t order, bool decomp) {
      * set the right position for the reversed traverse, the reversed traverse is started from
      * the end of each comp data block
      */
-    fseek(pTSBuf->f, -sizeof(pBlock->padding), SEEK_CUR);
-    fread(&pBlock->padding, sizeof(pBlock->padding), 1, pTSBuf->f);
+    int32_t ret = fseek(pTSBuf->f, -sizeof(pBlock->padding), SEEK_CUR);
+    size_t sz = fread(&pBlock->padding, sizeof(pBlock->padding), 1, pTSBuf->f);
+    UNUSED(sz); 
     
     pBlock->compLen = pBlock->padding;
     int32_t offset = pBlock->compLen + sizeof(pBlock->compLen) * 2 + sizeof(pBlock->numOfElem) + sizeof(pBlock->tag);
-    fseek(pTSBuf->f, -offset, SEEK_CUR);
+    ret = fseek(pTSBuf->f, -offset, SEEK_CUR);
+    UNUSED(ret);
   }
   
-  fread(&pBlock->tag, sizeof(pBlock->tag), 1, pTSBuf->f);
-  fread(&pBlock->numOfElem, sizeof(pBlock->numOfElem), 1, pTSBuf->f);
-  
-  fread(&pBlock->compLen, sizeof(pBlock->compLen), 1, pTSBuf->f);
-  fread(pBlock->payload, (size_t)pBlock->compLen, 1, pTSBuf->f);
+  size_t sz = fread(&pBlock->tag, sizeof(pBlock->tag), 1, pTSBuf->f);
+  UNUSED(sz);
+  sz = fread(&pBlock->numOfElem, sizeof(pBlock->numOfElem), 1, pTSBuf->f);
+  UNUSED(sz);
+  sz = fread(&pBlock->compLen, sizeof(pBlock->compLen), 1, pTSBuf->f);
+  UNUSED(sz);
+  sz = fread(pBlock->payload, (size_t)pBlock->compLen, 1, pTSBuf->f);
+  UNUSED(sz);
   
   if (decomp) {
     pTSBuf->tsData.len =
@@ -299,12 +314,13 @@ STSBlock* readDataFromDisk(STSBuf* pTSBuf, int32_t order, bool decomp) {
   }
   
   // read the comp length at the length of comp block
-  fread(&pBlock->padding, sizeof(pBlock->padding), 1, pTSBuf->f);
+  sz = fread(&pBlock->padding, sizeof(pBlock->padding), 1, pTSBuf->f);
+  UNUSED(sz);
   
   // for backwards traverse, set the start position at the end of previous block
   if (order == TSDB_ORDER_DESC) {
     int32_t offset = pBlock->compLen + sizeof(pBlock->compLen) * 2 + sizeof(pBlock->numOfElem) + sizeof(pBlock->tag);
-    int64_t r = fseek(pTSBuf->f, -offset, SEEK_CUR);
+    int32_t r = fseek(pTSBuf->f, -offset, SEEK_CUR);
     UNUSED(r);
   }
   
@@ -441,7 +457,8 @@ static int32_t tsBufFindBlock(STSBuf* pTSBuf, STSVnodeBlockInfo* pBlockInfo, int
     STSBlock* pBlock = &pTSBuf->block;
     int32_t   compBlockSize =
         pBlock->compLen + sizeof(pBlock->compLen) * 2 + sizeof(pBlock->numOfElem) + sizeof(pBlock->tag);
-    fseek(pTSBuf->f, -compBlockSize, SEEK_CUR);
+    int32_t ret = fseek(pTSBuf->f, -compBlockSize, SEEK_CUR);
+    UNUSED(ret);
   }
   
   return 0;
@@ -538,7 +555,7 @@ int32_t STSBufUpdateHeader(STSBuf* pTSBuf, STSBufFileHeader* pHeader) {
 
   assert(pHeader->tsOrder == TSDB_ORDER_ASC || pHeader->tsOrder == TSDB_ORDER_DESC);
 
-  int64_t r = fseek(pTSBuf->f, 0, SEEK_SET);
+  int32_t r = fseek(pTSBuf->f, 0, SEEK_SET);
   if (r != 0) {
     return -1;
   }
@@ -743,7 +760,9 @@ int32_t tsBufMerge(STSBuf* pDestBuf, const STSBuf* pSrcBuf, int32_t vnodeId) {
   int32_t oldSize = pDestBuf->fileSize;
   
   struct stat fileStat;
-  fstat(fileno(pDestBuf->f), &fileStat);
+  if (fstat(fileno(pDestBuf->f), &fileStat) != 0) {
+    return -1;  
+  }
   pDestBuf->fileSize = (uint32_t)fileStat.st_size;
   
   assert(pDestBuf->fileSize == oldSize + size);
@@ -766,8 +785,10 @@ STSBuf* tsBufCreateFromCompBlocks(const char* pData, int32_t numOfBlocks, int32_
   // update prev vnode length info in file
   TSBufUpdateVnodeInfo(pTSBuf, pTSBuf->numOfVnodes - 1, pBlockInfo);
   
-  fseek(pTSBuf->f, pBlockInfo->offset, SEEK_SET);
-  fwrite((void*)pData, 1, len, pTSBuf->f);
+  int32_t ret = fseek(pTSBuf->f, pBlockInfo->offset, SEEK_SET);
+  UNUSED(ret);
+  size_t sz = fwrite((void*)pData, 1, len, pTSBuf->f);
+  UNUSED(sz);
   pTSBuf->fileSize += len;
   
   pTSBuf->tsOrder = order;