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

mainline inclusion
from mainline-v5.11-rc1
commit 7af80c02
category: bugfix
bugzilla: 174002
CVE:NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7af80c02c7b3cf7ac580a33f15d155730574769f

----------------------------------------------------------------------

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: NWeihang Li <liweihang@huawei.com>
Signed-off-by: NJason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Nwangsirong <wangsirong@huawei.com>
Reviewed-by: NChunZhi Hu <huchunzhi@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -2556,6 +2556,8 @@ 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);