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

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Message-Id: <1622545669-20625-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Tue,  1 Jun 2021 19:07:49 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     bharat@...lsio.com
Cc:     dledford@...hat.com, jgg@...pe.ca, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] RDMA/cxgb4: Fix missing error code in create_qp()

The error code is missing in this code scenario, add the error code
'-EINVAL' to the return value 'ret'.

Eliminate the follow smatch warning:

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

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 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 d109bb3..c940374 100644
--- a/drivers/infiniband/hw/cxgb4/qp.c
+++ b/drivers/infiniband/hw/cxgb4/qp.c
@@ -295,6 +295,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq,
 	if (user && (!wq->sq.bar2_pa || (need_rq && !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;
 	}
 
-- 
1.8.3.1