From: Parav Pandit <parav@mellanox.com>
Date: Tue, 13 Mar 2018 16:06:13 +0200
Subject: IB/core: Honor return status of ib_init_ah_from_mcmember()
Patch-mainline: v4.17-rc1
Git-commit: 6d337179f28cc50ddd7e224f677b4cda70b275fc
References: bsc#1103992 FATE#326009
The return status of ib_init_ah_from_mcmember() is ignored by
cma_ib_mc_handler(). Honor it and return error event if ah attribute
initialization failed.
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/cma.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -3918,10 +3918,14 @@ static int cma_ib_mc_handler(int status,
rdma_start_port(id_priv->cma_dev->device)];
event.event = RDMA_CM_EVENT_MULTICAST_JOIN;
- ib_init_ah_from_mcmember(id_priv->id.device,
- id_priv->id.port_num, &multicast->rec,
- ndev, gid_type,
- &event.param.ud.ah_attr);
+ ret = ib_init_ah_from_mcmember(id_priv->id.device,
+ id_priv->id.port_num,
+ &multicast->rec,
+ ndev, gid_type,
+ &event.param.ud.ah_attr);
+ if (ret)
+ event.event = RDMA_CM_EVENT_MULTICAST_ERROR;
+
event.param.ud.qp_num = 0xFFFFFF;
event.param.ud.qkey = be32_to_cpu(multicast->rec.qkey);
if (ndev)