[TD-13756]<fix>: log file open fail error.

source/util/src/tlog.c

@@ -353,7 +353,9 @@ static int32_t taosOpenLogFile(char *fn, int32_t maxLines, int32_t maxFileNum) {
     printf("\nfailed to open log file:%s, reason:%s\n", fileName, strerror(errno));
     return -1;
   }
-  taosCloseFile(&tsLogObj.logHandle->pFile);
+  TdFilePtr pOldFile = tsLogObj.logHandle->pFile;
+  taosUnLockLogFile(pOldFile);
+  taosCloseFile(&pOldFile);
   tsLogObj.logHandle->pFile = pFile;
   taosLockLogFile(tsLogObj.logHandle->pFile);