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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  ppp: fix segfaults introduced by netdev_priv changes
  net: Fix module refcount leak in kernel_accept()
This commit is contained in:
Linus Torvalds 2008-12-22 10:12:54 -08:00
parent 3d44cc3e01 739840d529
commit 7ef5f41c16
3 changed files with 14 additions and 17 deletions
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28
drivers/net/ppp_generic.c
View File

@ -116,6 +116,7 @@ struct ppp {
unsigned long last_xmit; /* jiffies when last pkt sent 9c */
unsigned long last_recv; /* jiffies when last pkt rcvd a0 */
struct net_device *dev; /* network interface device a4 */
int closing; /* is device closing down? a8 */
#ifdef CONFIG_PPP_MULTILINK
int nxchan; /* next channel to send something on */
u32 nxseq; /* next sequence number to send */
@ -995,7 +996,7 @@ ppp_xmit_process(struct ppp *ppp)
struct sk_buff *skb;
ppp_xmit_lock(ppp);
if (ppp->dev) {
if (!ppp->closing) {
ppp_push(ppp);
while (!ppp->xmit_pending
&& (skb = skb_dequeue(&ppp->file.xq)))
@ -1463,8 +1464,7 @@ static inline void
ppp_do_recv(struct ppp *ppp, struct sk_buff *skb, struct channel *pch)
{
ppp_recv_lock(ppp);
/* ppp->dev == 0 means interface is closing down */
if (ppp->dev)
if (!ppp->closing)
ppp_receive_frame(ppp, skb, pch);
else
kfree_skb(skb);
@ -2498,18 +2498,16 @@ init_ppp_file(struct ppp_file *pf, int kind)
*/
static void ppp_shutdown_interface(struct ppp *ppp)
{
struct net_device *dev;
mutex_lock(&all_ppp_mutex);
ppp_lock(ppp);
dev = ppp->dev;
ppp->dev = NULL;
ppp_unlock(ppp);
/* This will call dev_close() for us. */
if (dev) {
unregister_netdev(dev);
free_netdev(dev);
}
ppp_lock(ppp);
if (!ppp->closing) {
ppp->closing = 1;
ppp_unlock(ppp);
unregister_netdev(ppp->dev);
} else
ppp_unlock(ppp);
cardmap_set(&all_ppp_units, ppp->file.index, NULL);
ppp->file.dead = 1;
ppp->owner = NULL;
@ -2554,7 +2552,7 @@ static void ppp_destroy_interface(struct ppp *ppp)
if (ppp->xmit_pending)
kfree_skb(ppp->xmit_pending);
kfree(ppp);
free_netdev(ppp->dev);
}
/*
@ -2616,7 +2614,7 @@ ppp_connect_channel(struct channel *pch, int unit)
if (pch->file.hdrlen > ppp->file.hdrlen)
ppp->file.hdrlen = pch->file.hdrlen;
hdrlen = pch->file.hdrlen + 2; /* for protocol bytes */
if (ppp->dev && hdrlen > ppp->dev->hard_header_len)
if (hdrlen > ppp->dev->hard_header_len)
ppp->dev->hard_header_len = hdrlen;
list_add_tail(&pch->clist, &ppp->channels);
++ppp->n_channels;

2
net/bluetooth/rfcomm/core.c
View File

@ -1786,8 +1786,6 @@ static inline void rfcomm_accept_connection(struct rfcomm_session *s)
if (err < 0)
return;
__module_get(nsock->ops->owner);
/* Set our callbacks */
nsock->sk->sk_data_ready = rfcomm_l2data_ready;
nsock->sk->sk_state_change = rfcomm_l2state_change;

1
net/socket.c
View File

@ -2307,6 +2307,7 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
}
(*newsock)->ops = sock->ops;
__module_get((*newsock)->ops->owner);
done:
return err;