linux-kernel - [PATCH 4.14 176/315] RDMA/cxgb4: Fix missing error code in create

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Message-Id: <20210719144948.678494534@linuxfoundation.org>
Date:   Mon, 19 Jul 2021 16:51:05 +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, Abaci Robot <abaci@...ux.alibaba.com>,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 176/315] RDMA/cxgb4: Fix missing error code in create_qp()

From: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>

[ Upstream commit aeb27bb76ad8197eb47890b1ff470d5faf8ec9a5 ]

The error code is missing in this code scenario so 0 will be returned. Add
the error code '-EINVAL' to the return value 'ret'.

Eliminates the follow smatch warning:

drivers/infiniband/hw/cxgb4/qp.c:298 create_qp() warn: missing error code 'ret'.

Link: https://lore.kernel.org/r/1622545669-20625-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/infiniband/hw/cxgb4/qp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c
index 15a867d62d02..325561580729 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -277,6 +277,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
 	if (user && (!wq->sq.bar2_pa || !wq->rq.bar2_pa)) {
 		pr_warn("%s: sqid %u or rqid %u not in BAR2 range\n",
 			pci_name(rdev->lldi.pdev), wq->sq.qid, wq->rq.qid);
+		ret = -EINVAL;
 		goto free_dma;
 	}
 
-- 
2.30.2