diff options
Diffstat (limited to 'net/appletalk/ddp.c')
| -rw-r--r-- | net/appletalk/ddp.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 4610c352849b..70cd5f55628d 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1803,15 +1803,14 @@ static int atalk_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) break; } case TIOCINQ: { - /* - * These two are safe on a single CPU system as only - * user tasks fiddle here - */ - struct sk_buff *skb = skb_peek(&sk->sk_receive_queue); + struct sk_buff *skb; long amount = 0; + spin_lock_irq(&sk->sk_receive_queue.lock); + skb = skb_peek(&sk->sk_receive_queue); if (skb) amount = skb->len - sizeof(struct ddpehdr); + spin_unlock_irq(&sk->sk_receive_queue.lock); rc = put_user(amount, (int __user *)argp); break; } |