diff options
| author |   Yang Yingliang <yangyingliang@huawei.com> | 2022-12-08 22:21:45 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-12-12 09:56:17 +0000 |
| commit | f07fadcbee2a5e84caa67c7c445424200bffb60b (patch) | |
| tree | f25cda6f2c0fc061086ba05a71bf642363b209ed | |
| parent | net: emaclite: don't call dev_kfree_skb() under spin_lock_irqsave() (diff) | |
| download | wireguard-linux-f07fadcbee2a5e84caa67c7c445424200bffb60b.tar.xz wireguard-linux-f07fadcbee2a5e84caa67c7c445424200bffb60b.zip | |
net: ethernet: dnet: don't call dev_kfree_skb() under spin_lock_irqsave()
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>
| -rw-r--r-- | drivers/net/ethernet/dnet.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/dnet.c b/drivers/net/ethernet/dnet.c index 08184f20f510..151ca9573be9 100644 --- a/drivers/net/ethernet/dnet.c +++ b/drivers/net/ethernet/dnet.c @@ -550,11 +550,11 @@ 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; } |