From: Can Guo <cang@codeaurora.org>
Date: Thu, 5 Dec 2019 02:14:33 +0000
Subject: scsi: ufs: Release clock if DMA map fails
Git-commit: 17c7d35f141ef6158076adf3338f115f64fcf760
Patch-mainline: v5.6-rc1
References: git-fixes

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

[mkp: applied by hand]
[lduncan: also applied by hand and refreshed]

Link: https://lore.kernel.org/r/0101016ed3d66395-1b7e7fce-b74d-42ca-a88a-4db78b795d3b-000000@us-west-2.amazonses.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Lee Duncan <lduncan@suse.com>
---
 drivers/scsi/ufs/ufshcd.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2477,6 +2477,7 @@ static int ufshcd_queuecommand(struct Sc
 	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 */