From: Yang Yingliang yangyingliang@huawei.com
[ Upstream commit f07fadcbee2a5e84caa67c7c445424200bffb60b ]
It is not allowed to call kfree_skb() or consume_skb() from hardware interrupt context or with hardware interrupts being disabled.
In this case, the lock is used to protected 'bp', so we can move dev_kfree_skb() after the spin_unlock_irqrestore().
Fixes: 4796417417a6 ("dnet: Dave DNET ethernet controller driver (updated)") Signed-off-by: Yang Yingliang yangyingliang@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/dnet.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/dnet.c b/drivers/net/ethernet/dnet.c index e24979010969..da9f9ec3e123 100644 --- a/drivers/net/ethernet/dnet.c +++ b/drivers/net/ethernet/dnet.c @@ -553,11 +553,11 @@ static netdev_tx_t dnet_start_xmit(struct sk_buff *skb, struct net_device *dev)
skb_tx_timestamp(skb);
+ spin_unlock_irqrestore(&bp->lock, flags); + /* free the buffer */ dev_kfree_skb(skb);
- spin_unlock_irqrestore(&bp->lock, flags); - return NETDEV_TX_OK; }