fix: coverity issues

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

@@ -675,7 +675,7 @@ int32_t metaGetTbTSchemaEx(SMeta *pMeta, tb_uid_t suid, tb_uid_t uid, int32_t sv
   SSchemaWrapper *pSchemaWrapper = &schema;
 
   tDecoderInit(&dc, pData, nData);
-  tDecodeSSchemaWrapper(&dc, pSchemaWrapper);
+  (void)tDecodeSSchemaWrapper(&dc, pSchemaWrapper);
   tDecoderClear(&dc);
   tdbFree(pData);
 

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

@@ -944,6 +944,7 @@ static int metaUpdateTableTagVal(SMeta *pMeta, int64_t version, SVAlterTbReq *pA
     metaUpdateTagIdx(pMeta, &ctbEntry);
   }
 
+  ASSERT(ctbEntry.ctbEntry.pTags);
   SCtbIdxKey ctbIdxKey = {.suid = ctbEntry.ctbEntry.suid, .uid = uid};
   tdbTbUpsert(pMeta->pCtbIdx, &ctbIdxKey, sizeof(ctbIdxKey), ctbEntry.ctbEntry.pTags,
               ((STag *)(ctbEntry.ctbEntry.pTags))->len, &pMeta->txn);
@@ -952,7 +953,7 @@ static int metaUpdateTableTagVal(SMeta *pMeta, int64_t version, SVAlterTbReq *pA
 
   tDecoderClear(&dc1);
   tDecoderClear(&dc2);
-  if (ctbEntry.ctbEntry.pTags) taosMemoryFree((void *)ctbEntry.ctbEntry.pTags);
+  taosMemoryFree((void *)ctbEntry.ctbEntry.pTags);
   if (ctbEntry.pBuf) taosMemoryFree(ctbEntry.pBuf);
   if (stbEntry.pBuf) tdbFree(stbEntry.pBuf);
   tdbTbcClose(pTbDbc);
@@ -1202,8 +1203,8 @@ static int metaUpdateTagIdx(SMeta *pMeta, const SMetaEntry *pCtbEntry) {
   SMetaEntry     stbEntry = {0};
   STagIdxKey    *pTagIdxKey = NULL;
   int32_t        nTagIdxKey;
-  const SSchema *pTagColumn;       // = &stbEntry.stbEntry.schema.pSchema[0];
-  const void    *pTagData = NULL;  //
+  const SSchema *pTagColumn;
+  const void    *pTagData = NULL;
   int32_t        nTagData = 0;
   SDecoder       dc = {0};
   int32_t        ret = 0;

source/libs/tdb/src/db/tdbBtree.c

@@ -1006,6 +1006,7 @@ static int tdbBtreeEncodePayload(SPage *pPage, SCell *pCell, int nHeader, const
       nLeft -= kLen;
       // pack partial val to local if any space left
       if (nLocal > nHeader + kLen + sizeof(SPgno)) {
+        ASSERT(pVal != NULL && vLen != 0);
         memcpy(pCell + nHeader + kLen, pVal, nLocal - nHeader - kLen - sizeof(SPgno));
         nLeft -= nLocal - nHeader - kLen - sizeof(SPgno);
       }

source/libs/tdb/src/db/tdbPCache.c

@@ -105,6 +105,7 @@ static int tdbPCacheAlterImpl(SPCache *pCache, int32_t nPage) {
     for (int32_t iPage = pCache->nPages; iPage < nPage; iPage++) {
       if (tdbPageCreate(pCache->szPage, &aPage[iPage], tdbDefaultMalloc, NULL) < 0) {
         // TODO: handle error
+        tdbOsFree(pCache->aPage);
         return -1;
       }
 
@@ -267,7 +268,7 @@ static SPage *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, TXN *pTxn)
   // 4. Try a create new page
   if (!pPage) {
     ret = tdbPageCreate(pCache->szPage, &pPage, pTxn->xMalloc, pTxn->xArg);
-    if (ret < 0) {
+    if (ret < 0 && pPage != NULL) {
       // TODO
       ASSERT(0);
       return NULL;
@@ -300,8 +301,8 @@ static SPage *tdbPCacheFetchImpl(SPCache *pCache, const SPgid *pPgid, TXN *pTxn)
       pPage->pPager = pPageH->pPager;
 
       memcpy(pPage->pData, pPageH->pData, pPage->pageSize);
-      tdbDebug("pcache/pPageH: %p %d %p %p %d", pPageH, pPageH->pPageHdr - pPageH->pData, pPageH->xCellSize, pPage,
-               TDB_PAGE_PGNO(pPageH));
+      // tdbDebug("pcache/pPageH: %p %d %p %p %d", pPageH, pPageH->pPageHdr - pPageH->pData, pPageH->xCellSize, pPage,
+      // TDB_PAGE_PGNO(pPageH));
       tdbPageInit(pPage, pPageH->pPageHdr - pPageH->pData, pPageH->xCellSize);
       pPage->kLen = pPageH->kLen;
       pPage->vLen = pPageH->vLen;

source/libs/tdb/src/db/tdbPager.c

@@ -84,7 +84,8 @@ int tdbPagerOpen(SPCache *pCache, const char *fileName, SPager **ppPager) {
   pPager->pCache = pCache;
 
   pPager->fd = tdbOsOpen(pPager->dbFileName, TDB_O_CREAT | TDB_O_RDWR, 0755);
-  if (pPager->fd < 0) {
+  if (TDB_FD_INVALID(pPager->fd)) {
+    // if (pPager->fd < 0) {
     return -1;
   }
 
@@ -226,7 +227,7 @@ int tdbPagerBegin(SPager *pPager, TXN *pTxn) {
 
   // Open the journal
   pPager->jfd = tdbOsOpen(pPager->jFileName, TDB_O_CREAT | TDB_O_RDWR, 0755);
-  if (pPager->jfd < 0) {
+  if (TDB_FD_INVALID(pPager->jfd)) {
     tdbError("failed to open file due to %s. jFileName:%s", strerror(errno), pPager->jFileName);
     terrno = TAOS_SYSTEM_ERROR(errno);
     return -1;
@@ -365,7 +366,7 @@ int tdbPagerAbort(SPager *pPager, TXN *pTxn) {
 
   // 4, remove the journal file
   tdbOsClose(pPager->jfd);
-  tdbOsRemove(pPager->jFileName);
+  (void)tdbOsRemove(pPager->jFileName);
   pPager->inTran = 0;
 
   return 0;
@@ -540,7 +541,8 @@ static int tdbPagerWritePageToJournal(SPager *pPager, SPage *pPage) {
 
   ret = tdbOsWrite(pPager->jfd, pPage->pData, pPage->pageSize);
   if (ret < 0) {
-    tdbError("failed to write page data due to %s. file:%s, pageSize:%ld", strerror(errno), pPager->jFileName, pPage->pageSize);
+    tdbError("failed to write page data due to %s. file:%s, pageSize:%ld", strerror(errno), pPager->jFileName,
+             pPage->pageSize);
     terrno = TAOS_SYSTEM_ERROR(errno);
     return -1;
   }
@@ -568,7 +570,8 @@ static int tdbPagerWritePageToDB(SPager *pPager, SPage *pPage) {
 
   ret = tdbOsWrite(pPager->fd, pPage->pData, pPage->pageSize);
   if (ret < 0) {
-    tdbError("failed to write page data due to %s. file:%s, pageSize:%ld", strerror(errno), pPager->dbFileName, pPage->pageSize);
+    tdbError("failed to write page data due to %s. file:%s, pageSize:%ld", strerror(errno), pPager->dbFileName,
+             pPage->pageSize);
     terrno = TAOS_SYSTEM_ERROR(errno);
     return -1;
   }
@@ -603,11 +606,13 @@ int tdbPagerRestore(SPager *pPager, SBTree *pBt) {
 
     int ret = tdbOsRead(jfd, &pgno, sizeof(pgno));
     if (ret < 0) {
+      tdbOsFree(pageBuf);
       return -1;
     }
 
     ret = tdbOsRead(jfd, pageBuf, pPager->pageSize);
     if (ret < 0) {
+      tdbOsFree(pageBuf);
       return -1;
     }
 
@@ -615,13 +620,16 @@ int tdbPagerRestore(SPager *pPager, SBTree *pBt) {
     if (tdbOsLSeek(pPager->fd, offset, SEEK_SET) < 0) {
       tdbError("failed to lseek fd due to %s. file:%s, offset:%ld", strerror(errno), pPager->dbFileName, offset);
       terrno = TAOS_SYSTEM_ERROR(errno);
+      tdbOsFree(pageBuf);
       return -1;
     }
 
     ret = tdbOsWrite(pPager->fd, pageBuf, pPager->pageSize);
     if (ret < 0) {
-      tdbError("failed to write buf due to %s. file: %s, bufsize:%d", strerror(errno), pPager->dbFileName, pPager->pageSize);
+      tdbError("failed to write buf due to %s. file: %s, bufsize:%d", strerror(errno), pPager->dbFileName,
+               pPager->pageSize);
       terrno = TAOS_SYSTEM_ERROR(errno);
+      tdbOsFree(pageBuf);
       return -1;
     }
   }
@@ -629,6 +637,7 @@ int tdbPagerRestore(SPager *pPager, SBTree *pBt) {
   if (tdbOsFSync(pPager->fd) < 0) {
     tdbError("failed to fsync fd due to %s. dbfile:%s", strerror(errno), pPager->dbFileName);
     terrno = TAOS_SYSTEM_ERROR(errno);
+    tdbOsFree(pageBuf);
     return -1;
   }
 

source/libs/tdb/src/db/tdbTable.c

@@ -106,11 +106,13 @@ int tdbTbOpen(const char *tbname, int keyLen, int valLen, tdb_cmpr_fn_t keyCmprF
   // pTb->pBt
   ret = tdbBtreeOpen(keyLen, valLen, pPager, tbname, pgno, keyCmprFn, &(pTb->pBt));
   if (ret < 0) {
+    tdbOsFree(pTb);
     return -1;
   }
 
   ret = tdbPagerRestore(pPager, pTb->pBt);
   if (ret < 0) {
+    tdbOsFree(pTb);
     return -1;
   }
 

source/libs/tdb/src/inc/tdbOs.h

@@ -37,6 +37,8 @@ extern "C" {
 /* file */
 typedef TdFilePtr tdb_fd_t;
 
+#define TDB_FD_INVALID(fd) (fd == NULL)
+
 #define TDB_O_CREAT  TD_FILE_CREATE
 #define TDB_O_WRITE  TD_FILE_WRITE
 #define TDB_O_READ   TD_FILE_READ