From: Eli Cohen <eli@xxxxxxxxxxxx>
For XRC QP CQs may not exist. Check before attempting dereference.
Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Eli Cohen <eli@xxxxxxxxxxxx>
Signed-off-by: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Reviewed-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/qp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 2ba0bbf..9806868 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -2079,8 +2079,8 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
mlx5_ib_dbg(dev, "ib qpnum 0x%x, mlx qpn 0x%x, rcqn 0x%x, scqn 0x%x\n",
qp->ibqp.qp_num, qp->trans_qp.base.mqp.qpn,
- to_mcq(init_attr->recv_cq)->mcq.cqn,
- to_mcq(init_attr->send_cq)->mcq.cqn);
+ init_attr->recv_cq ? to_mcq(init_attr->recv_cq)->mcq.cqn : -1,
+ init_attr->send_cq ? to_mcq(init_attr->send_cq)->mcq.cqn : -1);
qp->trans_qp.xrcdn = xrcdn;
--
2.7.4
--
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