diff options
Diffstat (limited to 'net/atm')
| -rw-r--r-- | net/atm/clip.c | 13 | ||||
| -rw-r--r-- | net/atm/common.c | 1 | ||||
| -rw-r--r-- | net/atm/lec.c | 46 | ||||
| -rw-r--r-- | net/atm/mpc.c | 6 | ||||
| -rw-r--r-- | net/atm/raw.c | 2 | ||||
| -rw-r--r-- | net/atm/resources.c | 3 |
6 files changed, 41 insertions, 30 deletions
diff --git a/net/atm/clip.c b/net/atm/clip.c index 42b910cb4e8e..b234dc3bcb0d 100644 --- a/net/atm/clip.c +++ b/net/atm/clip.c @@ -193,12 +193,6 @@ static void clip_push(struct atm_vcc *vcc, struct sk_buff *skb) pr_debug("\n"); - if (!clip_devs) { - atm_return(vcc, skb->truesize); - kfree_skb(skb); - return; - } - if (!skb) { pr_debug("removing VCC %p\n", clip_vcc); if (clip_vcc->entry) @@ -208,6 +202,11 @@ static void clip_push(struct atm_vcc *vcc, struct sk_buff *skb) return; } atm_return(vcc, skb->truesize); + if (!clip_devs) { + kfree_skb(skb); + return; + } + skb->dev = clip_vcc->entry ? clip_vcc->entry->neigh->dev : clip_devs; /* clip_vcc->entry == NULL if we don't have an IP address yet */ if (!skb->dev) { @@ -904,7 +903,7 @@ static void atm_clip_exit_noproc(void) /* First, stop the idle timer, so it stops banging * on the table. */ - del_timer_sync(&idle_timer); + timer_delete_sync(&idle_timer); dev = clip_devs; while (dev) { diff --git a/net/atm/common.c b/net/atm/common.c index 9b75699992ff..d7f7976ea13a 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -635,6 +635,7 @@ int vcc_sendmsg(struct socket *sock, struct msghdr *m, size_t size) skb->dev = NULL; /* for paths shared with net_device interfaces */ if (!copy_from_iter_full(skb_put(skb, size), size, &m->msg_iter)) { + atm_return_tx(vcc, skb); kfree_skb(skb); error = -EFAULT; goto out; diff --git a/net/atm/lec.c b/net/atm/lec.c index ffef658862db..afb8d3eb2185 100644 --- a/net/atm/lec.c +++ b/net/atm/lec.c @@ -124,6 +124,7 @@ static unsigned char bus_mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; /* Device structures */ static struct net_device *dev_lec[MAX_LEC_ITF]; +static DEFINE_MUTEX(lec_mutex); #if IS_ENABLED(CONFIG_BRIDGE) static void lec_handle_bridge(struct sk_buff *skb, struct net_device *dev) @@ -181,6 +182,7 @@ static void lec_send(struct atm_vcc *vcc, struct sk_buff *skb) { struct net_device *dev = skb->dev; + unsigned int len = skb->len; ATM_SKB(skb)->vcc = vcc; atm_account_tx(vcc, skb); @@ -191,7 +193,7 @@ lec_send(struct atm_vcc *vcc, struct sk_buff *skb) } dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; + dev->stats.tx_bytes += len; } static void lec_tx_timeout(struct net_device *dev, unsigned int txqueue) @@ -684,6 +686,7 @@ static int lec_vcc_attach(struct atm_vcc *vcc, void __user *arg) int bytes_left; struct atmlec_ioc ioc_data; + lockdep_assert_held(&lec_mutex); /* Lecd must be up in this case */ bytes_left = copy_from_user(&ioc_data, arg, sizeof(struct atmlec_ioc)); if (bytes_left != 0) @@ -709,6 +712,7 @@ static int lec_vcc_attach(struct atm_vcc *vcc, void __user *arg) static int lec_mcast_attach(struct atm_vcc *vcc, int arg) { + lockdep_assert_held(&lec_mutex); if (arg < 0 || arg >= MAX_LEC_ITF) return -EINVAL; arg = array_index_nospec(arg, MAX_LEC_ITF); @@ -724,6 +728,7 @@ static int lecd_attach(struct atm_vcc *vcc, int arg) int i; struct lec_priv *priv; + lockdep_assert_held(&lec_mutex); if (arg < 0) arg = 0; if (arg >= MAX_LEC_ITF) @@ -741,6 +746,7 @@ static int lecd_attach(struct atm_vcc *vcc, int arg) snprintf(dev_lec[i]->name, IFNAMSIZ, "lec%d", i); if (register_netdev(dev_lec[i])) { free_netdev(dev_lec[i]); + dev_lec[i] = NULL; return -EINVAL; } @@ -903,7 +909,6 @@ static void *lec_itf_walk(struct lec_state *state, loff_t *l) v = (dev && netdev_priv(dev)) ? lec_priv_walk(state, l, netdev_priv(dev)) : NULL; if (!v && dev) { - dev_put(dev); /* Partial state reset for the next time we get called */ dev = NULL; } @@ -927,6 +932,7 @@ static void *lec_seq_start(struct seq_file *seq, loff_t *pos) { struct lec_state *state = seq->private; + mutex_lock(&lec_mutex); state->itf = 0; state->dev = NULL; state->locked = NULL; @@ -944,8 +950,9 @@ static void lec_seq_stop(struct seq_file *seq, void *v) if (state->dev) { spin_unlock_irqrestore(&state->locked->lec_arp_lock, state->flags); - dev_put(state->dev); + state->dev = NULL; } + mutex_unlock(&lec_mutex); } static void *lec_seq_next(struct seq_file *seq, void *v, loff_t *pos) @@ -1002,6 +1009,7 @@ static int lane_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return -ENOIOCTLCMD; } + mutex_lock(&lec_mutex); switch (cmd) { case ATMLEC_CTRL: err = lecd_attach(vcc, (int)arg); @@ -1016,6 +1024,7 @@ static int lane_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) break; } + mutex_unlock(&lec_mutex); return err; } @@ -1301,7 +1310,7 @@ lec_arp_remove(struct lec_priv *priv, struct lec_arp_table *to_remove) return -1; hlist_del(&to_remove->next); - del_timer(&to_remove->timer); + timer_delete(&to_remove->timer); /* * If this is the only MAC connected to this VCC, @@ -1481,7 +1490,7 @@ static void lec_arp_destroy(struct lec_priv *priv) hlist_for_each_entry_safe(entry, next, &priv->lec_arp_empty_ones, next) { - del_timer_sync(&entry->timer); + timer_delete_sync(&entry->timer); lec_arp_clear_vccs(entry); hlist_del(&entry->next); lec_arp_put(entry); @@ -1490,7 +1499,7 @@ static void lec_arp_destroy(struct lec_priv *priv) hlist_for_each_entry_safe(entry, next, &priv->lec_no_forward, next) { - del_timer_sync(&entry->timer); + timer_delete_sync(&entry->timer); lec_arp_clear_vccs(entry); hlist_del(&entry->next); lec_arp_put(entry); @@ -1550,7 +1559,7 @@ static void lec_arp_expire_arp(struct timer_list *t) { struct lec_arp_table *entry; - entry = from_timer(entry, t, timer); + entry = timer_container_of(entry, t, timer); pr_debug("\n"); if (entry->status == ESI_ARP_PENDING) { @@ -1571,10 +1580,11 @@ static void lec_arp_expire_arp(struct timer_list *t) static void lec_arp_expire_vcc(struct timer_list *t) { unsigned long flags; - struct lec_arp_table *to_remove = from_timer(to_remove, t, timer); + struct lec_arp_table *to_remove = timer_container_of(to_remove, t, + timer); struct lec_priv *priv = to_remove->priv; - del_timer(&to_remove->timer); + timer_delete(&to_remove->timer); pr_debug("%p %p: vpi:%d vci:%d\n", to_remove, priv, @@ -1842,16 +1852,16 @@ lec_arp_update(struct lec_priv *priv, const unsigned char *mac_addr, &priv->lec_arp_empty_ones, next) { if (memcmp(entry->atm_addr, atm_addr, ATM_ESA_LEN) == 0) { hlist_del(&entry->next); - del_timer(&entry->timer); + timer_delete(&entry->timer); tmp = lec_arp_find(priv, mac_addr); if (tmp) { - del_timer(&tmp->timer); + timer_delete(&tmp->timer); tmp->status = ESI_FORWARD_DIRECT; memcpy(tmp->atm_addr, atm_addr, ATM_ESA_LEN); tmp->vcc = entry->vcc; tmp->old_push = entry->old_push; tmp->last_used = jiffies; - del_timer(&entry->timer); + timer_delete(&entry->timer); lec_arp_put(entry); entry = tmp; } else { @@ -1882,7 +1892,7 @@ lec_arp_update(struct lec_priv *priv, const unsigned char *mac_addr, /* Temporary, changes before end of function */ } memcpy(entry->atm_addr, atm_addr, ATM_ESA_LEN); - del_timer(&entry->timer); + timer_delete(&entry->timer); for (i = 0; i < LEC_ARP_TABLE_SIZE; i++) { hlist_for_each_entry(tmp, &priv->lec_arp_tables[i], next) { @@ -1945,7 +1955,7 @@ lec_vcc_added(struct lec_priv *priv, const struct atmlec_ioc *ioc_data, entry = make_entry(priv, bus_mac); if (entry == NULL) goto out; - del_timer(&entry->timer); + timer_delete(&entry->timer); memcpy(entry->atm_addr, ioc_data->atm_addr, ATM_ESA_LEN); entry->recv_vcc = vcc; entry->old_recv_push = old_push; @@ -1987,7 +1997,7 @@ lec_vcc_added(struct lec_priv *priv, const struct atmlec_ioc *ioc_data, entry->recv_vcc ? entry->recv_vcc-> vci : 0); found_entry = 1; - del_timer(&entry->timer); + timer_delete(&entry->timer); entry->vcc = vcc; entry->old_push = old_push; if (entry->status == ESI_VC_PENDING) { @@ -2171,7 +2181,7 @@ static void lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc) &priv->lec_arp_empty_ones, next) { if (entry->vcc == vcc) { lec_arp_clear_vccs(entry); - del_timer(&entry->timer); + timer_delete(&entry->timer); hlist_del(&entry->next); lec_arp_put(entry); } @@ -2181,7 +2191,7 @@ static void lec_vcc_close(struct lec_priv *priv, struct atm_vcc *vcc) &priv->lec_no_forward, next) { if (entry->recv_vcc == vcc) { lec_arp_clear_vccs(entry); - del_timer(&entry->timer); + timer_delete(&entry->timer); hlist_del(&entry->next); lec_arp_put(entry); } @@ -2214,7 +2224,7 @@ lec_arp_check_empties(struct lec_priv *priv, hlist_for_each_entry_safe(entry, next, &priv->lec_arp_empty_ones, next) { if (vcc == entry->vcc) { - del_timer(&entry->timer); + timer_delete(&entry->timer); ether_addr_copy(entry->mac_addr, src); entry->status = ESI_FORWARD_DIRECT; entry->last_used = jiffies; diff --git a/net/atm/mpc.c b/net/atm/mpc.c index 324e3ab96bb3..f6b447bba329 100644 --- a/net/atm/mpc.c +++ b/net/atm/mpc.c @@ -804,7 +804,7 @@ static int atm_mpoa_mpoad_attach(struct atm_vcc *vcc, int arg) /* This lets us now how our LECs are doing */ err = register_netdevice_notifier(&mpoa_notifier); if (err < 0) { - del_timer(&mpc_timer); + timer_delete(&mpc_timer); return err; } } @@ -1314,6 +1314,8 @@ static void MPOA_cache_impos_rcvd(struct k_message *msg, holding_time = msg->content.eg_info.holding_time; dprintk("(%s) entry = %p, holding_time = %u\n", mpc->dev->name, entry, holding_time); + if (entry == NULL && !holding_time) + return; if (entry == NULL && holding_time) { entry = mpc->eg_ops->add_entry(msg, mpc); mpc->eg_ops->put(entry); @@ -1493,7 +1495,7 @@ static void __exit atm_mpoa_cleanup(void) mpc_proc_clean(); - del_timer_sync(&mpc_timer); + timer_delete_sync(&mpc_timer); unregister_netdevice_notifier(&mpoa_notifier); deregister_atm_ioctl(&atm_ioctl_ops); diff --git a/net/atm/raw.c b/net/atm/raw.c index 2b5f78a7ec3e..1e6511ec842c 100644 --- a/net/atm/raw.c +++ b/net/atm/raw.c @@ -36,7 +36,7 @@ static void atm_pop_raw(struct atm_vcc *vcc, struct sk_buff *skb) pr_debug("(%d) %d -= %d\n", vcc->vci, sk_wmem_alloc_get(sk), ATM_SKB(skb)->acct_truesize); - WARN_ON(refcount_sub_and_test(ATM_SKB(skb)->acct_truesize, &sk->sk_wmem_alloc)); + atm_return_tx(vcc, skb); dev_kfree_skb_any(skb); sk->sk_write_space(sk); } diff --git a/net/atm/resources.c b/net/atm/resources.c index 995d29e7fb13..b19d851e1f44 100644 --- a/net/atm/resources.c +++ b/net/atm/resources.c @@ -146,11 +146,10 @@ void atm_dev_deregister(struct atm_dev *dev) */ mutex_lock(&atm_dev_mutex); list_del(&dev->dev_list); - mutex_unlock(&atm_dev_mutex); - atm_dev_release_vccs(dev); atm_unregister_sysfs(dev); atm_proc_dev_deregister(dev); + mutex_unlock(&atm_dev_mutex); atm_dev_put(dev); } |