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net: mhi: Fix memory leak in mhi_net_dellink()

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[ Upstream commit f7c125bd79f50ec6094761090be81d02726ec6f4 ]

MHI driver registers network device without setting the
needs_free_netdev flag, and does NOT call free_netdev() when
unregisters network device, which causes a memory leak.

This patch calls free_netdev() to fix it since netdev_priv
is used after unregister.

Fixes: 13adac032982 ("net: mhi_net: Register wwan_ops for link creation")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wei Yongjun 2022-11-11 09:20:44 +00:00 committed by Greg Kroah-Hartman
parent c08566d012
commit 25a270343b
1 changed files with 2 additions and 0 deletions
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2
drivers/net/mhi_net.c
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@ -343,6 +343,8 @@ static void mhi_net_dellink(struct mhi_device *mhi_dev, struct net_device *ndev)
kfree_skb(mhi_netdev->skbagg_head);
free_netdev(ndev);
dev_set_drvdata(&mhi_dev->dev, NULL);
}