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From: Can Guo <cang@codeaurora.org>
To: asutoshd@codeaurora.org, nguyenb@codeaurora.org,
	rnayak@codeaurora.org, linux-scsi@vger.kernel.org,
	kernel-team@android.com, saravanak@google.com,
	salyzyn@google.com, cang@codeaurora.org
Cc: Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	Pedro Sousa <pedrom.sousa@synopsys.com>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Stanley Chu <stanley.chu@mediatek.com>,
	Bean Huo <beanhuo@micron.com>,
	Tomas Winkler <tomas.winkler@intel.com>,
	Subhash Jadavani <subhashj@codeaurora.org>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 3/5] scsi: ufs: Release clock if DMA map fails
Date: Mon, 28 Oct 2019 20:10:52 -0700	[thread overview]
Message-ID: <1572318655-28772-4-git-send-email-cang@codeaurora.org> (raw)
In-Reply-To: <1572318655-28772-1-git-send-email-cang@codeaurora.org>

In queuecommand path, if DMA map fails, it bails out with clock held.
In this case, release the clock to keep its usage paired.

Signed-off-by: Can Guo <cang@codeaurora.org>
---
 drivers/scsi/ufs/ufshcd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 101b4d0..6e9236a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2480,6 +2480,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	if (err) {
 		lrbp->cmd = NULL;
 		clear_bit_unlock(tag, &hba->lrb_in_use);
+		ufshcd_release(hba);
 		goto out;
 	}
 	/* Make sure descriptors are ready before ringing the doorbell */
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


  parent reply	other threads:[~2019-10-29  3:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1572318655-28772-1-git-send-email-cang@codeaurora.org>
2019-10-29  3:10 ` [PATCH v2 1/5] scsi: Adjust DBD setting in mode sense for caching mode page per LLD Can Guo
2019-10-31 15:20   ` Mark Salyzyn
2019-10-31 15:40     ` Mark Salyzyn
2019-11-01  0:18       ` cang
2019-10-29  3:10 ` [PATCH v2 2/5] scsi: ufs: Set DBD setting in mode sense for caching mode page Can Guo
2019-10-29  3:10 ` Can Guo [this message]
2019-10-29  3:10 ` [PATCH v2 4/5] scsi: ufs: Do not clear the DL layer timers Can Guo
2019-10-29  3:10 ` [PATCH v2 5/5] scsi: ufs: Do not free irq in suspend Can Guo

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