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net: lapbether: fix double free

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The function netdev_priv() returns the private data of the device. The
memory to store the private data is allocated in alloc_netdev() and is
released in netdev_free(). Calling kfree() on the return value of
netdev_priv() after netdev_free() results in a double free bug.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pan Bian 2017-10-29 21:57:22 +08:00 committed by David S. Miller
parent 04686ef299
commit 7db8874abd
1 changed files with 0 additions and 1 deletions
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drivers/net/wan/lapbether.c
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@ -346,7 +346,6 @@ static int lapbeth_new_device(struct net_device *dev)
fail:
dev_put(dev);
free_netdev(ndev);
kfree(lapbeth);
goto out;
}