net: hisilicon: remove unexpected free_netdev
authorPan Bian <bianpan2016@163.com>
Wed, 28 Nov 2018 07:30:24 +0000 (15:30 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 17 Dec 2018 20:55:11 +0000 (21:55 +0100)
commit573f19f1517bee0dd16ebf629c0746a2dfc20461
treea468ccda0eee913a047ba96f95d72415a10f0c1f
parent553c8675f5fea8c9fbf178c3a2187a2423b4af38
net: hisilicon: remove unexpected free_netdev

[ Upstream commit c758940158bf29fe14e9d0f89d5848f227b48134 ]

The net device ndev is freed via free_netdev when failing to register
the device. The control flow then jumps to the error handling code
block. ndev is used and freed again. Resulting in a use-after-free bug.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/hisilicon/hip04_eth.c