Hi, Can Guo > diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c ... > > req->end_io_data = &wait; > - free_slot = req->tag; > WARN_ON_ONCE(free_slot < 0 || free_slot >= hba->nutmrs); I think this line should be removed. Thanks, Daejun