linux-kernel - [PATCH v1 1/2] scsi: core: Ignore the UHPPB preparation result

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Message-Id: <20211029194113.293031-2-huobean@gmail.com>
Date:   Fri, 29 Oct 2021 21:41:12 +0200
From:   Bean Huo <huobean@...il.com>
To:     alim.akhtar@...sung.com, avri.altman@....com,
        asutoshd@...eaurora.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, stanley.chu@...iatek.com,
        beanhuo@...ron.com, bvanassche@....org, tomas.winkler@...el.com,
        cang@...eaurora.org, daejun7.park@...sung.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/2] scsi: core: Ignore the UHPPB preparation result

From: Bean Huo <beanhuo@...ron.com>

Ignore the UHPPB preparation result and continue the original request if the
preparation fails

Signed-off-by: Bean Huo <beanhuo@...ron.com>
---
 drivers/scsi/ufs/ufshcd.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d91a405fd181..a11248d89a7e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2740,12 +2740,11 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 
 	lrbp->req_abort_skip = false;
 
-	err = ufshpb_prep(hba, lrbp);
-	if (err == -EAGAIN) {
-		lrbp->cmd = NULL;
-		ufshcd_release(hba);
-		goto out;
-	}
+	/*
+	 * Ignore the UHPPB preparation result and continue with the original
+	 * request if preperation fails.
+	 */
+	ufshpb_prep(hba, lrbp);
 
 	ufshcd_comp_scsi_upiu(hba, lrbp);
 
-- 
2.25.1