From: Jing Xiangfeng <jingxiangfeng@huawei.com>
Date: Fri, 16 Oct 2020 15:58:45 +0800
Subject: RDMA/core: Fix error return in _ib_modify_qp()
Patch-mainline: v5.11-rc1
Git-commit: 5333499c6014224756e97fa1a1047dfa592d76d3
References: jsc#SLE-15176

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@huawei.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/core/verbs.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1685,8 +1685,10 @@ static int _ib_modify_qp(struct ib_qp *q
 			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;
 		}
 	}