From: Dinghao Liu <dinghao.liu@zju.edu.cn>
To: dinghao.liu@zju.edu.cn, kjlu@umn.edu
Cc: Alim Akhtar <alim.akhtar@samsung.com>,
Avri Altman <avri.altman@wdc.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Bean Huo <beanhuo@micron.com>,
Bart Van Assche <bvanassche@acm.org>,
Can Guo <cang@codeaurora.org>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] scsi: ufs-bsg: Fix runtime PM imbalance on error
Date: Fri, 22 May 2020 12:59:29 +0800 [thread overview]
Message-ID: <20200522045932.31795-1-dinghao.liu@zju.edu.cn> (raw)
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>
---
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:
--
2.17.1
next reply other threads:[~2020-05-22 4:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-22 4:59 Dinghao Liu [this message]
2020-05-22 8:36 ` [EXT] [PATCH] scsi: ufs-bsg: Fix runtime PM imbalance on error 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
2020-06-16 3:46 ` Martin K. Petersen
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