From: Avri Altman <Avri.Altman@wdc.com>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: "kjlu@umn.edu" <kjlu@umn.edu>,
Alim Akhtar <alim.akhtar@samsung.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
Bean Huo <beanhuo@micron.com>,
Bart Van Assche <bvanassche@acm.org>,
Can Guo <cang@codeaurora.org>,
"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Dinghao Liu <dinghao.liu@zju.edu.cn>
Subject: RE: [PATCH] scsi: ufs-bsg: Fix runtime PM imbalance on error
Date: Wed, 10 Jun 2020 07:16:31 +0000 [thread overview]
Message-ID: <SN6PR04MB464040E5275E7F5C28CFB9E9FC830@SN6PR04MB4640.namprd04.prod.outlook.com> (raw)
In-Reply-To: <yq1k10fsmaj.fsf@ca-mkp.ca.oracle.com>
Hi,
> Avri: Please review!
>
> > When ufs_bsg_alloc_desc_buffer() returns an error code,
> > a pairing runtime PM usage counter decrement is needed
> > to keep the counter balanced.
> >
> > Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Please add:
Fixes: 74e5e468b664 (scsi: ufs-bsg: Wake the device before sending raw upiu commands)
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Thanks,
Avri
> > ---
> > drivers/scsi/ufs/ufs_bsg.c | 4 +++-
> > 1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/scsi/ufs/ufs_bsg.c b/drivers/scsi/ufs/ufs_bsg.c
> > index 53dd87628cbe..516a7f573942 100644
> > --- a/drivers/scsi/ufs/ufs_bsg.c
> > +++ b/drivers/scsi/ufs/ufs_bsg.c
> > @@ -106,8 +106,10 @@ static int ufs_bsg_request(struct bsg_job *job)
> > desc_op = bsg_request->upiu_req.qr.opcode;
> > ret = ufs_bsg_alloc_desc_buffer(hba, job, &desc_buff,
> > &desc_len, desc_op);
> > - if (ret)
> > + if (ret) {
> > + pm_runtime_put_sync(hba->dev);
> > goto out;
> > + }
> >
> > /* fall through */
> > case UPIU_TRANSACTION_NOP_OUT:
>
> --
> Martin K. Petersen Oracle Linux Engineering
next prev parent reply other threads:[~2020-06-10 7:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-22 4:59 [PATCH] scsi: ufs-bsg: Fix runtime PM imbalance on error Dinghao Liu
2020-05-22 8:36 ` [EXT] " Bean Huo (beanhuo)
2020-05-22 8:54 ` dinghao.liu
2020-05-22 14:55 ` Bean Huo (beanhuo)
2020-05-23 10:10 ` dinghao.liu
2020-06-10 2:11 ` Martin K. Petersen
2020-06-10 7:16 ` Avri Altman [this message]
2020-06-16 3:46 ` Martin K. Petersen
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