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Commit a1ab8402 authored by Eli Cohen's avatar Eli Cohen Committed by Doug Ledford
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IB/mlx5: Fix NULL pointer dereference on debug print 



For XRC QP CQs may not exist. Check before attempting dereference.

Fixes: e126ba97 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: default avatarEli Cohen <eli@mellanox.com>
Signed-off-by: default avatarMaor Gottlieb <maorg@mellanox.com>
Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent dbaaff2a

drivers/infiniband/hw/mlx5/qp.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -2052,8 +2052,8 @@ 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",

		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,

			    qp->ibqp.qp_num, qp->trans_qp.base.mqp.qpn,

			    to_mcq(init_attr->recv_cq)->mcq.cqn,

			    init_attr->recv_cq ? to_mcq(init_attr->recv_cq)->mcq.cqn : -1,

			    to_mcq(init_attr->send_cq)->mcq.cqn);

			    init_attr->send_cq ? to_mcq(init_attr->send_cq)->mcq.cqn : -1);





		qp->trans_qp.xrcdn = xrcdn;

		qp->trans_qp.xrcdn = xrcdn;