RDMA/hns: Fix double free of the pointer to TSQ/TPQ

A return statement is omitted after getting HEM table, then the newly
allocated pointer will be freed directly, which will cause a calltrace
when the driver was removed.

Fixes: d6d91e46 ("RDMA/hns: Add support for configuring GMV table")
Link: https://lore.kernel.org/r/1605180582-46504-1-git-send-email-liweihang@huawei.comSigned-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -2582,6 +2582,8 @@ static int hns_roce_v2_init(struct hns_roce_dev *hr_dev)
 	if (ret)
 		goto err_get_hem_table_failed;
 
+	return 0;
+
 err_get_hem_table_failed:
 	hns_roce_free_link_table(hr_dev, &priv->tpq);