4.15-stable review patch.  If anyone has any objections, please let me know.

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

From: Peng Li <lipeng...@huawei.com>


[ Upstream commit 99fdf6b1cadf41bb253408589788f025027274f3 ]

This patch fixes a memory leak problems in change tqps process,
the function hns3_uninit_all_ring and hns3_init_all_ring
may be called many times.

Signed-off-by: Peng Li <lipeng...@huawei.com>
Signed-off-by: Mingguang Qu <quminggu...@huawei.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
@@ -2785,8 +2785,12 @@ int hns3_uninit_all_ring(struct hns3_nic
                        h->ae_algo->ops->reset_queue(h, i);
 
                hns3_fini_ring(priv->ring_data[i].ring);
+               devm_kfree(priv->dev, priv->ring_data[i].ring);
                hns3_fini_ring(priv->ring_data[i + h->kinfo.num_tqps].ring);
+               devm_kfree(priv->dev,
+                          priv->ring_data[i + h->kinfo.num_tqps].ring);
        }
+       devm_kfree(priv->dev, priv->ring_data);
 
        return 0;
 }


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