UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/freescale/gianfar.c
View File

@ -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); skb_new = skb_realloc_headroom(skb, fcb_len);
if (!skb_new) { if (!skb_new) {
dev->stats.tx_errors++; dev->stats.tx_errors++;
kfree_skb(skb); dev_kfree_skb_any(skb);
return NETDEV_TX_OK; return NETDEV_TX_OK;
} }
if (skb->sk) if (skb->sk)
skb_set_owner_w(skb_new, skb->sk); skb_set_owner_w(skb_new, skb->sk);
consume_skb(skb); dev_consume_skb_any(skb);
skb = skb_new; skb = skb_new;
} }