From: Lijun Ou <oulijun@xxxxxxxxxx> The pointer ctrl may be null, so we add check for it. Signed-off-by: Lijun Ou <oulijun@xxxxxxxxxx> Reviewed-by: Wei Hu <xavier.huwei@xxxxxxxxxx> Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html