net: hns3: free the ring_data structrue when change tqps

BugLink: http://bugs.launchpad.net/bugs/1756097
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>
(cherry picked from commit 99fdf6b1cadf41bb253408589788f025027274f3)
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 7e92068f26550971815595fc3b570f6cec4328ef..1c9303860531b58c519f40860a67f1e0e60fd5ec 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2800,8 +2800,12 @@ 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;
 }