[PATCH AUTOSEL for 4.15 013/124] net: hns3: free the ring_data structrue when change tqps

Sasha Levin
2018-03-19T22:39:57Z

From: Peng Li <lipeng321@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 <lipeng321@huawei.com>
Signed-off-by: Mingguang Qu <qumingguang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
index 59415090ff0f..853f273da22d 100644
--- 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_priv *priv)
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;
}
--
2.14.1