diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index 0e10d1b000..f46726e647 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -187,7 +187,7 @@ int32_t tsdbCmprData(uint8_t *pIn, int32_t szIn, int8_t type, int8_t cmprAlg, ui
                      int32_t *szOut, uint8_t **ppBuf);
 int32_t tsdbDecmprData(uint8_t *pIn, int32_t szIn, int8_t type, int8_t cmprAlg, uint8_t **ppOut, int32_t szOut,
                        uint8_t **ppBuf);
-int32_t tsdbCmprColData(SColData *pColData, int8_t cmprAlg, SBlockCol *pBlockCol, uint8_t **ppOut, int8_t nOut,
+int32_t tsdbCmprColData(SColData *pColData, int8_t cmprAlg, SBlockCol *pBlockCol, uint8_t **ppOut, int32_t nOut,
                         uint8_t **ppBuf);
 int32_t tsdbDecmprColData(uint8_t *pIn, SBlockCol *pBlockCol, int8_t cmprAlg, int32_t nVal, SColData *pColData,
                           uint8_t **ppBuf);
diff --git a/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c b/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
index f73883d050..af1342daf3 100644
--- a/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
+++ b/source/dnode/vnode/src/tsdb/tsdbReaderWriter.c
@@ -1050,11 +1050,10 @@ _err:
 
 int32_t tsdbDataFWriterClose(SDataFWriter **ppWriter, int8_t sync) {
   int32_t code = 0;
-  STsdb  *pTsdb = (*ppWriter)->pTsdb;
+  STsdb  *pTsdb = NULL;
 
   if (*ppWriter == NULL) goto _exit;
-
-  if (sync) {
+  pTsdb = (*ppWriter)->pTsdb if (sync) {
     if (taosFsyncFile((*ppWriter)->pHeadFD) < 0) {
       code = TAOS_SYSTEM_ERROR(errno);
       goto _err;
diff --git a/source/dnode/vnode/src/tsdb/tsdbUtil.c b/source/dnode/vnode/src/tsdb/tsdbUtil.c
index d0d354e467..d5bd1f8c0c 100644
--- a/source/dnode/vnode/src/tsdb/tsdbUtil.c
+++ b/source/dnode/vnode/src/tsdb/tsdbUtil.c
@@ -1794,7 +1794,7 @@ _exit:
   return code;
 }
 
-int32_t tsdbCmprColData(SColData *pColData, int8_t cmprAlg, SBlockCol *pBlockCol, uint8_t **ppOut, int8_t nOut,
+int32_t tsdbCmprColData(SColData *pColData, int8_t cmprAlg, SBlockCol *pBlockCol, uint8_t **ppOut, int32_t nOut,
                         uint8_t **ppBuf) {
   int32_t code = 0;