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RDMA/hns: Add illegal hop_num judgement
author
Lijun Ou
<oulijun@huawei.com>
Wed, 25 Jul 2018 07:29:37 +0000
(15:29 +0800)
committer
Jason Gunthorpe
<jgg@mellanox.com>
Thu, 26 Jul 2018 22:51:34 +0000
(16:51 -0600)
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>
drivers/infiniband/hw/hns/hns_roce_hem.c
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diff --git
a/drivers/infiniband/hw/hns/hns_roce_hem.c
b/drivers/infiniband/hw/hns/hns_roce_hem.c
index
63b5b3e
..
8dc336a
100644
(file)
--- 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 */