When hop_num is more than three, it need to return -EINVAL. This patch fixes it. Signed-off-by: Lijun Ou <oulijun@xxxxxxxxxx> --- 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 63b5b3e..8dc336a 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 */ -- 1.9.1 -- 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