linux-kernel - [PATCH] RDMA/core: Fix error return code in _ib_modify

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Date:   Thu, 12 Nov 2020 17:06:26 +0800
From:   Chen Zhou <chenzhou10@...wei.com>
To:     <dledford@...hat.com>, <jgg@...pe.ca>, <leon@...nel.org>,
        <maorg@...lanox.com>
CC:     <linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <chenzhou10@...wei.com>, Hulk Robot <hulkci@...wei.com>
Subject: [PATCH] RDMA/core: Fix error return code in _ib_modify_qp()

Fix to return a negative error code from the error handling case
instead of 0 in function _ib_modify_qp(), as done elsewhere in this
function.

Fixes: 51aab12631dd ("RDMA/core: Get xmit slave for LAG")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Chen Zhou <chenzhou10@...wei.com>
---
 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 740f8454b6b4..3d895cc41c3a 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;
 		}
 	}
-- 
2.20.1