linux-kernel - [PATCH net-next 04/17] net: hns3: Free the ring

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Message-ID: <1513589500-121623-5-git-send-email-lipeng321@huawei.com>
Date:   Mon, 18 Dec 2017 17:31:27 +0800
From:   Lipeng <lipeng321@...wei.com>
To:     <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...wei.com>, <salil.mehta@...wei.com>,
        <lipeng321@...wei.com>
Subject: [PATCH net-next 04/17] net: hns3: Free the ring_data structrue when change tqps

This patch fix 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: qumingguang <qumingguang@...wei.com>
Signed-off-by: Lipeng <lipeng321@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index e52de45..2aeddf9 100644
--- 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;
 }
-- 
1.9.1