155     int bufLen = iovcnt * sizeof(struct iovec);  in UserIovCopy()  local
156     if (bufLen < 0) {  in UserIovCopy()
160     *iovBuf = (struct iovec*)LOS_MemAlloc(OS_SYS_MEM_ADDR, bufLen);  in UserIovCopy()
165     if (LOS_ArchCopyFromUser(*iovBuf, iov, bufLen) != 0) {  in UserIovCopy()
1710     size_t bufLen = n;  in SysGetcwd()  local
1713     if (bufLen > PATH_MAX) {  in SysGetcwd()
1714         bufLen = PATH_MAX;  in SysGetcwd()
1717     bufRet = (char *)LOS_MemAlloc(OS_SYS_MEM_ADDR, bufLen);  in SysGetcwd()
1721     (void)memset_s(bufRet, bufLen, 0, bufLen);  in SysGetcwd()
1723     ret = getcwd((buf ? bufRet : NULL), bufLen);  in SysGetcwd()
1729     retVal = LOS_ArchCopyToUser(buf, bufRet, bufLen);  in SysGetcwd()