net: lantiq_etop: don't free skb when returning NETDEV_TX_BUSY
authorZhang Changzhong <zhangchangzhong@huawei.com>
Fri, 21 Oct 2022 01:32:24 +0000 (09:32 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 3 Nov 2022 14:59:16 +0000 (23:59 +0900)
commitef27df75912d9a031b218e8cbd35486753e0c1df
tree727a28f4c79699e07a04fdc34975e83f37290b70
parenta1e18acb0246bfb001b08b8b1b830b5ec92a0f13
net: lantiq_etop: don't free skb when returning NETDEV_TX_BUSY

[ Upstream commit 9c1eaa27ec599fcc25ed4970c0b73c247d147a2b ]

The ndo_start_xmit() method must not free skb when returning
NETDEV_TX_BUSY, since caller is going to requeue freed skb.

Fixes: 504d4721ee8e ("MIPS: Lantiq: Add ethernet driver")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/ethernet/lantiq_etop.c