linux-kernel - [PATCH v1 2/6] ufs: ufs_bsg: Cleanup ufs_bsg

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Date:   Sun, 20 Nov 2022 20:49:26 +0100
From:   Bean Huo <beanhuo@...pp.de>
To:     alim.akhtar@...sung.com, avri.altman@....com, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, stanley.chu@...iatek.com,
        beanhuo@...ron.com, bvanassche@....org, tomas.winkler@...el.com,
        daejun7.park@...sung.com, quic_cang@...cinc.com,
        quic_nguyenb@...cinc.com, quic_xiaosenh@...cinc.com,
        quic_richardp@...cinc.com, quic_asutoshd@...cinc.com, hare@...e.de
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 2/6] ufs: ufs_bsg: Cleanup ufs_bsg_request

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

Move sg_copy_from_buffer() below its associated case statement.

Signed-off-by: Bean Huo <beanhuo@...ron.com>
---
 drivers/ufs/core/ufs_bsg.c | 27 ++++++++-------------------
 1 file changed, 8 insertions(+), 19 deletions(-)

diff --git a/drivers/ufs/core/ufs_bsg.c b/drivers/ufs/core/ufs_bsg.c
index 9ac8204f1ee6..850a0d798f63 100644
--- a/drivers/ufs/core/ufs_bsg.c
+++ b/drivers/ufs/core/ufs_bsg.c
@@ -90,11 +90,8 @@ 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) {
-			ufshcd_rpm_put_sync(hba);
+		if (ret)
 			goto out;
-		}
-
 		fallthrough;
 	case UPIU_TRANSACTION_NOP_OUT:
 	case UPIU_TRANSACTION_TASK_REQ:
@@ -102,9 +99,12 @@ static int ufs_bsg_request(struct bsg_job *job)
 					       &bsg_reply->upiu_rsp, msgcode,
 					       desc_buff, &desc_len, desc_op);
 		if (ret)
-			dev_err(hba->dev,
-				"exe raw upiu: error code %d\n", ret);
-
+			dev_err(hba->dev, "exe raw upiu: error code %d\n", ret);
+		else if (desc_op == UPIU_QUERY_OPCODE_READ_DESC && desc_len)
+			bsg_reply->reply_payload_rcv_len =
+				sg_copy_from_buffer(job->request_payload.sg_list,
+						    job->request_payload.sg_cnt,
+						    desc_buff, desc_len);
 		break;
 	case UPIU_TRANSACTION_UIC_CMD:
 		memcpy(&uc, &bsg_request->upiu_req.uc, UIC_CMD_SIZE);
@@ -123,20 +123,9 @@ static int ufs_bsg_request(struct bsg_job *job)
 		break;
 	}
 
+out:
 	ufshcd_rpm_put_sync(hba);
-
-	if (!desc_buff)
-		goto out;
-
-	if (desc_op == UPIU_QUERY_OPCODE_READ_DESC && desc_len)
-		bsg_reply->reply_payload_rcv_len =
-			sg_copy_from_buffer(job->request_payload.sg_list,
-					    job->request_payload.sg_cnt,
-					    desc_buff, desc_len);
-
 	kfree(desc_buff);
-
-out:
 	bsg_reply->result = ret;
 	job->reply_len = sizeof(struct ufs_bsg_reply);
 	/* complete the job here only if no error */
-- 
2.25.1