fix: coverity scan for sma and tfs

source/dnode/vnode/src/sma/smaCommit.c

@@ -161,10 +161,12 @@ static int32_t tdProcessRSmaSyncPreCommitImpl(SSma *pSma) {
  * @return int32_t
  */
 static int32_t tdProcessRSmaSyncCommitImpl(SSma *pSma) {
+#if 0
   SSmaEnv *pSmaEnv = SMA_RSMA_ENV(pSma);
   if (!pSmaEnv) {
     return TSDB_CODE_SUCCESS;
   }
+#endif
   return TSDB_CODE_SUCCESS;
 }
 

source/dnode/vnode/src/sma/smaRollup.c

@@ -1935,7 +1935,8 @@ int32_t tdRSmaProcessExecImpl(SSma *pSma, ERsmaExecType type) {
                 int8_t oldStat = atomic_val_compare_exchange_8(RSMA_COMMIT_STAT(pRSmaStat), 0, 2);
                 if (oldStat == 0 ||
                     ((oldStat == 2) && atomic_load_8(RSMA_TRIGGER_STAT(pRSmaStat)) < TASK_TRIGGER_STAT_PAUSED)) {
-                  atomic_fetch_add_32(&pRSmaStat->nFetchAll, 1);
+                  int32_t oldVal = atomic_fetch_add_32(&pRSmaStat->nFetchAll, 1);
+                  ASSERT(oldVal >= 0);
                   tdRSmaFetchAllResult(pSma, pInfo);
                   if (0 == atomic_sub_fetch_32(&pRSmaStat->nFetchAll, 1)) {
                     atomic_store_8(RSMA_COMMIT_STAT(pRSmaStat), 0);

source/dnode/vnode/src/sma/smaSnapshot.c

@@ -373,7 +373,11 @@ int32_t rsmaSnapWriterClose(SRSmaSnapWriter** ppWriter, int8_t rollback) {
     // TODO: rsma1/rsma2
     // qtaskinfo
     if (pWriter->pQTaskFWriter) {
-      taosRemoveFile(pWriter->pQTaskFWriter->fname);
+      if (taosRemoveFile(pWriter->pQTaskFWriter->fname) != 0) {
+        smaWarn("vgId:%d, vnode snapshot rsma writer failed to remove %s since %s", SMA_VID(pWriter->pSma),
+                pWriter->pQTaskFWriter->fname ? pWriter->pQTaskFWriter->fname : "NULL",
+                terrstr(TAOS_SYSTEM_ERROR(errno)));
+      }
     }
   } else {
     // rsma1/rsma2

source/libs/tfs/inc/tfsInt.h

@@ -57,7 +57,7 @@ typedef struct {
 typedef struct STfsDir {
   SDiskIter iter;
   SDiskID   did;
-  char      dirname[TSDB_FILENAME_LEN];
+  char      dirName[TSDB_FILENAME_LEN];
   STfsFile  tfile;
   TdDirPtr  pDir;
   STfs     *pTfs;

source/libs/tfs/src/tfs.c

@@ -332,7 +332,7 @@ STfsDir *tfsOpendir(STfs *pTfs, const char *rname) {
   SDiskID diskId = {.id = 0, .level = 0};
   pDir->iter.pDisk = TFS_DISK_AT(pTfs, diskId);
   pDir->pTfs = pTfs;
-  tstrncpy(pDir->dirname, rname, TSDB_FILENAME_LEN);
+  tstrncpy(pDir->dirName, rname, TSDB_FILENAME_LEN);
 
   if (tfsOpendirImpl(pTfs, pDir) < 0) {
     taosMemoryFree(pDir);
@@ -354,10 +354,10 @@ const STfsFile *tfsReaddir(STfsDir *pTfsDir) {
       char *name = taosGetDirEntryName(pDirEntry);
       if (strcmp(name, ".") == 0 || strcmp(name, "..") == 0) continue;
 
-      if (pTfsDir->dirname == NULL || pTfsDir->dirname[0] == 0) {
+      if (pTfsDir->dirName == NULL || pTfsDir->dirName[0] == 0) {
         snprintf(bname, TMPNAME_LEN * 2, "%s", name);
       } else {
-        snprintf(bname, TMPNAME_LEN * 2, "%s%s%s", pTfsDir->dirname, TD_DIRSEP, name);
+        snprintf(bname, TMPNAME_LEN * 2, "%s%s%s", pTfsDir->dirName, TD_DIRSEP, name);
       }
 
       tfsInitFile(pTfsDir->pTfs, &pTfsDir->tfile, pTfsDir->did, bname);
@@ -523,9 +523,9 @@ static int32_t tfsOpendirImpl(STfs *pTfs, STfsDir *pTfsDir) {
     pTfsDir->did.id = pDisk->id;
 
     if (pDisk->path == NULL || pDisk->path[0] == 0) {
-      snprintf(adir, TMPNAME_LEN * 2, "%s", pTfsDir->dirname);
+      snprintf(adir, TMPNAME_LEN * 2, "%s", pTfsDir->dirName);
     } else {
-      snprintf(adir, TMPNAME_LEN * 2, "%s%s%s", pDisk->path, TD_DIRSEP, pTfsDir->dirname);
+      snprintf(adir, TMPNAME_LEN * 2, "%s%s%s", pDisk->path, TD_DIRSEP, pTfsDir->dirName);
     }
     pTfsDir->pDir = taosOpenDir(adir);
     if (pTfsDir->pDir != NULL) break;