From 26f63b9c33ceda12fb9136a1d0c80e03c9ebb514 Mon Sep 17 00:00:00 2001 From: Lijun Ou Date: Wed, 25 Jul 2018 15:29:37 +0800 Subject: [PATCH] RDMA/hns: Add illegal hop_num judgement When hop_num is more than three, it need to return -EINVAL. This patch fixes it. Signed-off-by: Lijun Ou Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hns/hns_roce_hem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.c b/drivers/infiniband/hw/hns/hns_roce_hem.c index 63b5b3edabcb..8dc336a85128 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hem.c +++ b/drivers/infiniband/hw/hns/hns_roce_hem.c @@ -494,6 +494,9 @@ static int hns_roce_table_mhop_get(struct hns_roce_dev *hr_dev, step_idx = 1; } else if (hop_num == HNS_ROCE_HOP_NUM_0) { step_idx = 0; + } else { + ret = -EINVAL; + goto err_dma_alloc_l1; } /* set HEM base address to hardware */ -- 2.45.2