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RDMA/hns: Add illegal hop_num judgement

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When hop_num is more than three, it need to return -EINVAL.  This patch
fixes it.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Lijun Ou 2018-07-25 15:29:37 +08:00 committed by Jason Gunthorpe
parent dedf63506a
commit 26f63b9c33
1 changed files with 3 additions and 0 deletions
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3
drivers/infiniband/hw/hns/hns_roce_hem.c
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@ -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 */