linux-kernel - [PATCH 5.10 022/717] RDMA/core: Fix error return in _ib_modify

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Date:   Mon, 28 Dec 2020 13:40:20 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jing Xiangfeng <jingxiangfeng@...wei.com>,
        Maor Gottlieb <maorg@...dia.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 022/717] RDMA/core: Fix error return in _ib_modify_qp()

From: Jing Xiangfeng <jingxiangfeng@...wei.com>

[ Upstream commit 5333499c6014224756e97fa1a1047dfa592d76d3 ]

Fix to return error code PTR_ERR() from the error handling case instead of
0.

Fixes: 51aab12631dd ("RDMA/core: Get xmit slave for LAG")
Link: https://lore.kernel.org/r/20201016075845.129562-1-jingxiangfeng@huawei.com
Signed-off-by: Jing Xiangfeng <jingxiangfeng@...wei.com>
Reviewed-by: Maor Gottlieb <maorg@...dia.com>
Signed-off-by: Jason Gunthorpe <jgg@...dia.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/infiniband/core/verbs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 740f8454b6b46..3d895cc41c3ad 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1698,8 +1698,10 @@ static int _ib_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
 			slave = rdma_lag_get_ah_roce_slave(qp->device,
 							   &attr->ah_attr,
 							   GFP_KERNEL);
-			if (IS_ERR(slave))
+			if (IS_ERR(slave)) {
+				ret = PTR_ERR(slave);
 				goto out_av;
+			}
 			attr->xmit_slave = slave;
 		}
 	}
-- 
2.27.0