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gianfar: Carefully free skbs in functions called by netpoll. 

netpoll can call functions in hard irq context that are ordinarily
called in lesser contexts.  For those functions use dev_kfree_skb_any
and dev_consume_skb_any so skbs are freed safely from hard irq
context.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2014-03-11 14:20:26 -07:00 committed by David S. Miller
parent d8ec2c02ca
commit c9974ad4ae
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/freescale/gianfar.c
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@ -2192,13 +2192,13 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
skb_new = skb_realloc_headroom(skb, fcb_len);
if (!skb_new) {
dev->stats.tx_errors++;
kfree_skb(skb);
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
if (skb->sk)
skb_set_owner_w(skb_new, skb->sk);
consume_skb(skb);
dev_consume_skb_any(skb);
skb = skb_new;
}