linux-kernel - [PATCH 4.19 055/125] nvme-fc: Fix wrong return value in __nvme_fc_init

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Message-Id: <20200901150937.251719140@linuxfoundation.org>
Date:   Tue,  1 Sep 2020 17:10:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, James Smart <jsmart2021@...il.com>,
        Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>,
        Chaitanya Kulkarni <chaitanya.kulkarni@....com>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>, Jens Axboe <axboe@...nel.dk>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 055/125] nvme-fc: Fix wrong return value in __nvme_fc_init_request()

From: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>

[ Upstream commit f34448cd0dc697723fb5f4118f8431d9233b370d ]

On an error exit path, a negative error code should be returned
instead of a positive return value.

Fixes: e399441de9115 ("nvme-fabrics: Add host support for FC transport")
Cc: James Smart <jsmart2021@...il.com>
Signed-off-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@....com>
Reviewed-by: Christoph Hellwig <hch@....de>
Signed-off-by: Sagi Grimberg <sagi@...mberg.me>
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/nvme/host/fc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index ed43b06353a39..bb3b447c56468 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -1716,7 +1716,7 @@ __nvme_fc_init_request(struct nvme_fc_ctrl *ctrl,
 	if (fc_dma_mapping_error(ctrl->lport->dev, op->fcp_req.cmddma)) {
 		dev_err(ctrl->dev,
 			"FCP Op failed - cmdiu dma mapping failed.\n");
-		ret = EFAULT;
+		ret = -EFAULT;
 		goto out_on_error;
 	}
 
@@ -1726,7 +1726,7 @@ __nvme_fc_init_request(struct nvme_fc_ctrl *ctrl,
 	if (fc_dma_mapping_error(ctrl->lport->dev, op->fcp_req.rspdma)) {
 		dev_err(ctrl->dev,
 			"FCP Op failed - rspiu dma mapping failed.\n");
-		ret = EFAULT;
+		ret = -EFAULT;
 	}
 
 	atomic_set(&op->state, FCPOP_STATE_IDLE);
-- 
2.25.1