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Date: Fri, 9 Sep 2016 18:30:34 +0800
From: Salil Mehta <salil.mehta@...wei.com>
To: <dledford@...hat.com>
CC: <salil.mehta@...wei.com>, <xavier.huwei@...wei.com>,
<oulijun@...wei.com>, <yisen.zhuang@...wei.com>,
<xuwei5@...ilicon.com>, <mehta.salil.lnk@...il.com>,
<linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linuxarm@...wei.com>
Subject: [PATCH for-next 03/20] IB/hns: Add the check for pointer ctrl
From: Lijun Ou <oulijun@...wei.com>
The pointer ctrl may be null, so we add check for it.
Signed-off-by: Lijun Ou <oulijun@...wei.com>
Reviewed-by: Wei Hu <xavier.huwei@...wei.com>
Signed-off-by: Salil Mehta <salil.mehta@...wei.com>
---
drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
index 5f76fc1..ea47ec4 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -336,6 +336,12 @@ int hns_roce_v1_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
}
ctrl = get_recv_wqe(hr_qp, ind);
+ if (unlikely(!ctrl)) {
+ dev_err(dev, "Get recv wqe failed!\n");
+ ret = -EINVAL;
+ *bad_wr = wr;
+ goto out;
+ }
roce_set_field(ctrl->rwqe_byte_12,
RQ_WQE_CTRL_RWQE_BYTE_12_RWQE_SGE_NUM_M,
--
1.7.9.5
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