Merge branch 'linus' into core/rcu

Conflicts:

	include/linux/rculist.h
	kernel/rcupreempt.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

40 files changed, 203 insertions, 130 deletions

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index c2397f5..f38cc53 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -442,12 +442,16 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
 
 void __exit br_cleanup_bridges(void)
 {
-	struct net_device *dev, *nxt;
+	struct net_device *dev;
 
 	rtnl_lock();
-	for_each_netdev_safe(&init_net, dev, nxt)
-		if (dev->priv_flags & IFF_EBRIDGE)
+restart:
+	for_each_netdev(&init_net, dev) {
+		if (dev->priv_flags & IFF_EBRIDGE) {
 			del_br(dev->priv);
+			goto restart;
+		}
+	}
 	rtnl_unlock();
 
 }
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 7e8ca28..484bbf6 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -205,12 +205,19 @@ static int can_create(struct net *net, struct socket *sock, int protocol)
  *  -ENOBUFS on full driver queue (see net_xmit_errno())
  *  -ENOMEM when local loopback failed at calling skb_clone()
  *  -EPERM when trying to send on a non-CAN interface
+ *  -EINVAL when the skb->data does not contain a valid CAN frame
  */
 int can_send(struct sk_buff *skb, int loop)
 {
 	struct sk_buff *newskb = NULL;
+	struct can_frame *cf = (struct can_frame *)skb->data;
 	int err;
 
+	if (skb->len != sizeof(struct can_frame) || cf->can_dlc > 8) {
+		kfree_skb(skb);
+		return -EINVAL;
+	}
+
 	if (skb->dev->type != ARPHRD_CAN) {
 		kfree_skb(skb);
 		return -EPERM;
@@ -605,6 +612,7 @@ static int can_rcv(struct sk_buff *skb, struct net_device *dev,
 		   struct packet_type *pt, struct net_device *orig_dev)
 {
 	struct dev_rcv_lists *d;
+	struct can_frame *cf = (struct can_frame *)skb->data;
 	int matches;
 
 	if (dev->type != ARPHRD_CAN || dev_net(dev) != &init_net) {
@@ -612,6 +620,8 @@ static int can_rcv(struct sk_buff *skb, struct net_device *dev,
 		return 0;
 	}
 
+	BUG_ON(skb->len != sizeof(struct can_frame) || cf->can_dlc > 8);
+
 	/* update statistics */
 	can_stats.rx_frames++;
 	can_stats.rx_frames_delta++;
diff --git a/net/can/bcm.c b/net/can/bcm.c
index d9a3a9d..72c2ce9 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -298,7 +298,7 @@ static void bcm_send_to_user(struct bcm_op *op, struct bcm_msg_head *head,
 
 	if (head->nframes) {
 		/* can_frames starting here */
-		firstframe = (struct can_frame *) skb_tail_pointer(skb);
+		firstframe = (struct can_frame *)skb_tail_pointer(skb);
 
 		memcpy(skb_put(skb, datalen), frames, datalen);
 
@@ -826,6 +826,10 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
 		for (i = 0; i < msg_head->nframes; i++) {
 			err = memcpy_fromiovec((u8 *)&op->frames[i],
 					       msg->msg_iov, CFSIZ);
+
+			if (op->frames[i].can_dlc > 8)
+				err = -EINVAL;
+
 			if (err < 0)
 				return err;
 
@@ -858,6 +862,10 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
 		for (i = 0; i < msg_head->nframes; i++) {
 			err = memcpy_fromiovec((u8 *)&op->frames[i],
 					       msg->msg_iov, CFSIZ);
+
+			if (op->frames[i].can_dlc > 8)
+				err = -EINVAL;
+
 			if (err < 0) {
 				if (op->frames != &op->sframe)
 					kfree(op->frames);
@@ -1164,9 +1172,12 @@ static int bcm_tx_send(struct msghdr *msg, int ifindex, struct sock *sk)
 
 	skb->dev = dev;
 	skb->sk  = sk;
-	can_send(skb, 1); /* send with loopback */
+	err = can_send(skb, 1); /* send with loopback */
 	dev_put(dev);
 
+	if (err)
+		return err;
+
 	return CFSIZ + MHSIZ;
 }
 
@@ -1185,6 +1196,10 @@ static int bcm_sendmsg(struct kiocb *iocb, struct socket *sock,
 	if (!bo->bound)
 		return -ENOTCONN;
 
+	/* check for valid message length from userspace */
+	if (size < MHSIZ || (size - MHSIZ) % CFSIZ)
+		return -EINVAL;
+
 	/* check for alternative ifindex for this bcm_op */
 
 	if (!ifindex && msg->msg_name) {
@@ -1259,8 +1274,8 @@ static int bcm_sendmsg(struct kiocb *iocb, struct socket *sock,
 		break;
 
 	case TX_SEND:
-		/* we need at least one can_frame */
-		if (msg_head.nframes < 1)
+		/* we need exactly one can_frame behind the msg head */
+		if ((msg_head.nframes != 1) || (size != CFSIZ + MHSIZ))
 			ret = -EINVAL;
 		else
 			ret = bcm_tx_send(msg, ifindex, sk);
diff --git a/net/can/raw.c b/net/can/raw.c
index 69877b8..3e46ee3 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -632,6 +632,9 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock,
 	} else
 		ifindex = ro->ifindex;
 
+	if (size != sizeof(struct can_frame))
+		return -EINVAL;
+
 	dev = dev_get_by_index(&init_net, ifindex);
 	if (!dev)
 		return -ENXIO;
diff --git a/net/core/dev.c b/net/core/dev.c
index c421a1f..fca23a3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -454,7 +454,7 @@ static int netdev_boot_setup_add(char *name, struct ifmap *map)
 	for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
 		if (s[i].name[0] == '\0' || s[i].name[0] == ' ') {
 			memset(s[i].name, 0, sizeof(s[i].name));
-			strcpy(s[i].name, name);
+			strlcpy(s[i].name, name, IFNAMSIZ);
 			memcpy(&s[i].map, map, sizeof(s[i].map));
 			break;
 		}
@@ -479,7 +479,7 @@ int netdev_boot_setup_check(struct net_device *dev)
 
 	for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
 		if (s[i].name[0] != '\0' && s[i].name[0] != ' ' &&
-		    !strncmp(dev->name, s[i].name, strlen(s[i].name))) {
+		    !strcmp(dev->name, s[i].name)) {
 			dev->irq 	= s[i].map.irq;
 			dev->base_addr 	= s[i].map.base_addr;
 			dev->mem_start 	= s[i].map.mem_start;
@@ -2973,7 +2973,7 @@ EXPORT_SYMBOL(dev_unicast_delete);
 /**
  *	dev_unicast_add		- add a secondary unicast address
  *	@dev: device
- *	@addr: address to delete
+ *	@addr: address to add
  *	@alen: length of @addr
  *
  *	Add a secondary unicast address to the device or increase
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index e3e9ab0..277a230 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -226,7 +226,7 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
 	ops = lookup_rules_ops(net, frh->family);
 	if (ops == NULL) {
-		err = EAFNOSUPPORT;
+		err = -EAFNOSUPPORT;
 		goto errout;
 	}
 
@@ -365,7 +365,7 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
 	ops = lookup_rules_ops(net, frh->family);
 	if (ops == NULL) {
-		err = EAFNOSUPPORT;
+		err = -EAFNOSUPPORT;
 		goto errout;
 	}
 
diff --git a/net/core/filter.c b/net/core/filter.c
index 4f83697..df37443 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -68,7 +68,6 @@ static inline void *load_pointer(struct sk_buff *skb, int k,
  *	sk_filter - run a packet through a socket filter
  *	@sk: sock associated with &sk_buff
  *	@skb: buffer to filter
- *	@needlock: set to 1 if the sock is not locked by caller.
  *
  * Run the filter code and then cut skb->data to correct size returned by
  * sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 1e556d3..3666216 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1292,12 +1292,14 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
 {
 	unsigned int nr_pages = spd->nr_pages;
 	unsigned int poff, plen, len, toff, tlen;
-	int headlen, seg;
+	int headlen, seg, error = 0;
 
 	toff = *offset;
 	tlen = *total_len;
-	if (!tlen)
+	if (!tlen) {
+		error = 1;
 		goto err;
+	}
 
 	/*
 	 * if the offset is greater than the linear part, go directly to
@@ -1339,7 +1341,8 @@ static int __skb_splice_bits(struct sk_buff *skb, unsigned int *offset,
 		 * just jump directly to update and return, no point
 		 * in going over fragments when the output is full.
 		 */
-		if (spd_fill_page(spd, virt_to_page(p), plen, poff, skb))
+		error = spd_fill_page(spd, virt_to_page(p), plen, poff, skb);
+		if (error)
 			goto done;
 
 		tlen -= plen;
@@ -1369,7 +1372,8 @@ map_frag:
 		if (!plen)
 			break;
 
-		if (spd_fill_page(spd, f->page, plen, poff, skb))
+		error = spd_fill_page(spd, f->page, plen, poff, skb);
+		if (error)
 			break;
 
 		tlen -= plen;
@@ -1382,7 +1386,10 @@ done:
 		return 0;
 	}
 err:
-	return 1;
+	/* update the offset to reflect the linear part skip, if any */
+	if (!error)
+		*offset = toff;
+	return error;
 }
 
 /*
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 4ed429b..0546a0b 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -192,14 +192,21 @@ EXPORT_SYMBOL(inet_frag_evictor);
 
 static struct inet_frag_queue *inet_frag_intern(struct netns_frags *nf,
 		struct inet_frag_queue *qp_in, struct inet_frags *f,
-		unsigned int hash, void *arg)
+		void *arg)
 {
 	struct inet_frag_queue *qp;
 #ifdef CONFIG_SMP
 	struct hlist_node *n;
 #endif
+	unsigned int hash;
 
 	write_lock(&f->lock);
+	/*
+	 * While we stayed w/o the lock other CPU could update
+	 * the rnd seed, so we need to re-calculate the hash
+	 * chain. Fortunatelly the qp_in can be used to get one.
+	 */
+	hash = f->hashfn(qp_in);
 #ifdef CONFIG_SMP
 	/* With SMP race we have to recheck hash table, because
 	 * such entry could be created on other cpu, while we
@@ -247,7 +254,7 @@ static struct inet_frag_queue *inet_frag_alloc(struct netns_frags *nf,
 }
 
 static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf,
-		struct inet_frags *f, void *arg, unsigned int hash)
+		struct inet_frags *f, void *arg)
 {
 	struct inet_frag_queue *q;
 
@@ -255,7 +262,7 @@ static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf,
 	if (q == NULL)
 		return NULL;
 
-	return inet_frag_intern(nf, q, f, hash, arg);
+	return inet_frag_intern(nf, q, f, arg);
 }
 
 struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
@@ -264,7 +271,6 @@ struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
 	struct inet_frag_queue *q;
 	struct hlist_node *n;
 
-	read_lock(&f->lock);
 	hlist_for_each_entry(q, n, &f->hash[hash], list) {
 		if (q->net == nf && f->match(q, key)) {
 			atomic_inc(&q->refcnt);
@@ -274,6 +280,6 @@ struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
 	}
 	read_unlock(&f->lock);
 
-	return inet_frag_create(nf, f, key, hash);
+	return inet_frag_create(nf, f, key);
 }
 EXPORT_SYMBOL(inet_frag_find);
diff --git a/net/ipv4/inet_lro.c b/net/ipv4/inet_lro.c
index 4a4d49f..cfd034a 100644
--- a/net/ipv4/inet_lro.c
+++ b/net/ipv4/inet_lro.c
@@ -383,8 +383,7 @@ static int __lro_proc_skb(struct net_lro_mgr *lro_mgr, struct sk_buff *skb,
 out2: /* send aggregated SKBs to stack */
 	lro_flush(lro_mgr, lro_desc);
 
-out:  /* Original SKB has to be posted to stack */
-	skb->ip_summed = lro_mgr->ip_summed;
+out:
 	return 1;
 }
 
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index cd6ce6a..37221f6 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -229,6 +229,8 @@ static inline struct ipq *ip_find(struct net *net, struct iphdr *iph, u32 user)
 
 	arg.iph = iph;
 	arg.user = user;
+
+	read_lock(&ip4_frags.lock);
 	hash = ipqhashfn(iph->id, iph->saddr, iph->daddr, iph->protocol);
 
 	q = inet_frag_find(&net->ipv4.frags, &ip4_frags, &arg, hash);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index fc54a48..1d723de1 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -255,11 +255,14 @@
 #include <linux/init.h>
 #include <linux/fs.h>
 #include <linux/skbuff.h>
+#include <linux/scatterlist.h>
 #include <linux/splice.h>
 #include <linux/net.h>
 #include <linux/socket.h>
 #include <linux/random.h>
 #include <linux/bootmem.h>
+#include <linux/highmem.h>
+#include <linux/swap.h>
 #include <linux/cache.h>
 #include <linux/err.h>
 #include <linux/crypto.h>
@@ -1206,7 +1209,8 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
 		return -ENOTCONN;
 	while ((skb = tcp_recv_skb(sk, seq, &offset)) != NULL) {
 		if (offset < skb->len) {
-			size_t used, len;
+			int used;
+			size_t len;
 
 			len = skb->len - offset;
 			/* Stop reading if we hit a patch of urgent data */
@@ -2620,7 +2624,7 @@ __setup("thash_entries=", set_thash_entries);
 void __init tcp_init(void)
 {
 	struct sk_buff *skb = NULL;
-	unsigned long limit;
+	unsigned long nr_pages, limit;
 	int order, i, max_share;
 
 	BUILD_BUG_ON(sizeof(struct tcp_skb_cb) > sizeof(skb->cb));
@@ -2689,8 +2693,9 @@ void __init tcp_init(void)
 	 * is up to 1/2 at 256 MB, decreasing toward zero with the amount of
 	 * memory, with a floor of 128 pages.
 	 */
-	limit = min(nr_all_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT);
-	limit = (limit * (nr_all_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11);
+	nr_pages = totalram_pages - totalhigh_pages;
+	limit = min(nr_pages, 1UL<<(28-PAGE_SHIFT)) >> (20-PAGE_SHIFT);
+	limit = (limit * (nr_pages >> (20-PAGE_SHIFT))) >> (PAGE_SHIFT-11);
 	limit = max(limit, 128UL);
 	sysctl_tcp_mem[0] = limit / 4 * 3;
 	sysctl_tcp_mem[1] = limit;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 12695be..ffe869a 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2291,7 +2291,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len)
 	}
 
 	seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "
-			"%08X %5d %8d %lu %d %p %u %u %u %u %d%n",
+			"%08X %5d %8d %lu %d %p %lu %lu %u %u %d%n",
 		i, src, srcp, dest, destp, sk->sk_state,
 		tp->write_seq - tp->snd_una,
 		sk->sk_state == TCP_LISTEN ? sk->sk_ack_backlog :
@@ -2303,8 +2303,8 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len)
 		icsk->icsk_probes_out,
 		sock_i_ino(sk),
 		atomic_read(&sk->sk_refcnt), sk,
-		icsk->icsk_rto,
-		icsk->icsk_ack.ato,
+		jiffies_to_clock_t(icsk->icsk_rto),
+		jiffies_to_clock_t(icsk->icsk_ack.ato),
 		(icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong,
 		tp->snd_cwnd,
 		tp->snd_ssthresh >= 0xFFFF ? -1 : tp->snd_ssthresh,
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 27a5e8b..f405cea 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -129,7 +129,7 @@ static struct nf_hook_ops ip6t_ops[] __read_mostly = {
 		.priority	= NF_IP6_PRI_MANGLE,
 	},
 	{
-		.hook		= ip6t_local_hook,
+		.hook		= ip6t_route_hook,
 		.owner		= THIS_MODULE,
 		.pf		= PF_INET6,
 		.hooknum	= NF_INET_LOCAL_IN,
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index e65e26e..cf20bc4 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -207,9 +207,10 @@ fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
 	arg.id = id;
 	arg.src = src;
 	arg.dst = dst;
+
+	read_lock_bh(&nf_frags.lock);
 	hash = ip6qhashfn(id, src, dst);
 
-	local_bh_disable();
 	q = inet_frag_find(&nf_init_frags, &nf_frags, &arg, hash);
 	local_bh_enable();
 	if (q == NULL)
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 798cabc..a60d7d1 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -247,6 +247,8 @@ fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst,
 	arg.id = id;
 	arg.src = src;
 	arg.dst = dst;
+
+	read_lock(&ip6_frags.lock);
 	hash = ip6qhashfn(id, src, dst);
 
 	q = inet_frag_find(&net->ipv6.frags, &ip6_frags, &arg, hash);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index d1f3e19..7ff6870 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -240,7 +240,7 @@ static inline int rt6_need_strict(struct in6_addr *daddr)
 static inline struct rt6_info *rt6_device_match(struct net *net,
 						    struct rt6_info *rt,
 						    int oif,
-						    int strict)
+						    int flags)
 {
 	struct rt6_info *local = NULL;
 	struct rt6_info *sprt;
@@ -253,7 +253,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net,
 			if (dev->flags & IFF_LOOPBACK) {
 				if (sprt->rt6i_idev == NULL ||
 				    sprt->rt6i_idev->dev->ifindex != oif) {
-					if (strict && oif)
+					if (flags & RT6_LOOKUP_F_IFACE && oif)
 						continue;
 					if (local && (!oif ||
 						      local->rt6i_idev->dev->ifindex == oif))
@@ -266,7 +266,7 @@ static inline struct rt6_info *rt6_device_match(struct net *net,
 		if (local)
 			return local;
 
-		if (strict)
+		if (flags & RT6_LOOKUP_F_IFACE)
 			return net->ipv6.ip6_null_entry;
 	}
 	return rt;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index cb46749..40ea9c3 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -2036,7 +2036,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
 
 	seq_printf(seq,
 		   "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
-		   "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %u %u %u %u %d\n",
+		   "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %lu %lu %u %u %d\n",
 		   i,
 		   src->s6_addr32[0], src->s6_addr32[1],
 		   src->s6_addr32[2], src->s6_addr32[3], srcp,
@@ -2052,8 +2052,8 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
 		   icsk->icsk_probes_out,
 		   sock_i_ino(sp),
 		   atomic_read(&sp->sk_refcnt), sp,
-		   icsk->icsk_rto,
-		   icsk->icsk_ack.ato,
+		   jiffies_to_clock_t(icsk->icsk_rto),
+		   jiffies_to_clock_t(icsk->icsk_ack.ato),
 		   (icsk->icsk_ack.quick << 1 ) | icsk->icsk_ack.pingpong,
 		   tp->snd_cwnd, tp->snd_ssthresh>=0xFFFF?-1:tp->snd_ssthresh
 		   );
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 150d66d..220e83b 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -380,6 +380,15 @@ void ieee80211_key_free(struct ieee80211_key *key)
 	if (!key)
 		return;
 
+	if (!key->sdata) {
+		/* The key has not been linked yet, simply free it
+		 * and don't Oops */
+		if (key->conf.alg == ALG_CCMP)
+			ieee80211_aes_key_free(key->u.ccmp.tfm);
+		kfree(key);
+		return;
+	}
+
 	spin_lock_irqsave(&key->sdata->local->key_lock, flags);
 	__ieee80211_key_free(key);
 	spin_unlock_irqrestore(&key->sdata->local->key_lock, flags);
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 6106cb7..e840421 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -95,6 +95,13 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
 			}
 		}
 
+		if (alg == ALG_WEP &&
+			key_len != LEN_WEP40 && key_len != LEN_WEP104) {
+			ieee80211_key_free(key);
+			err = -EINVAL;
+			goto out_unlock;
+		}
+
 		ieee80211_key_link(key, sdata, sta);
 
 		if (set_tx_key || (!sta && !sdata->default_key && key))
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 635b996..5d09e86 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -323,8 +323,7 @@ static void wme_qdiscop_destroy(struct Qdisc* qd)
 	struct ieee80211_hw *hw = &local->hw;
 	int queue;
 
-	tcf_destroy_chain(q->filter_list);
-	q->filter_list = NULL;
+	tcf_destroy_chain(&q->filter_list);
 
 	for (queue=0; queue < hw->queues; queue++) {
 		skb_queue_purge(&q->requeued[queue]);
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index ba94004..271cd01 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -331,12 +331,13 @@ static unsigned int get_conntrack_index(const struct tcphdr *tcph)
 
    I.   Upper bound for valid data:	seq <= sender.td_maxend
    II.  Lower bound for valid data:	seq + len >= sender.td_end - receiver.td_maxwin
-   III.	Upper bound for valid ack:      sack <= receiver.td_end
-   IV.	Lower bound for valid ack:	ack >= receiver.td_end - MAXACKWINDOW
+   III.	Upper bound for valid (s)ack:   sack <= receiver.td_end
+   IV.	Lower bound for valid (s)ack:	sack >= receiver.td_end - MAXACKWINDOW
 
-   where sack is the highest right edge of sack block found in the packet.
+   where sack is the highest right edge of sack block found in the packet
+   or ack in the case of packet without SACK option.
 
-   The upper bound limit for a valid ack is not ignored -
+   The upper bound limit for a valid (s)ack is not ignored -
    we doesn't have to deal with fragments.
 */
 
@@ -606,12 +607,12 @@ static bool tcp_in_window(const struct nf_conn *ct,
 		 before(seq, sender->td_maxend + 1),
 		 after(end, sender->td_end - receiver->td_maxwin - 1),
 		 before(sack, receiver->td_end + 1),
-		 after(ack, receiver->td_end - MAXACKWINDOW(sender)));
+		 after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1));
 
 	if (before(seq, sender->td_maxend + 1) &&
 	    after(end, sender->td_end - receiver->td_maxwin - 1) &&
 	    before(sack, receiver->td_end + 1) &&
-	    after(ack, receiver->td_end - MAXACKWINDOW(sender))) {
+	    after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1)) {
 		/*
 		 * Take into account window scaling (RFC 1323).
 		 */
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 0099da5b..52b2611 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -1534,7 +1534,7 @@ static int netlbl_unlabel_staticlistdef(struct sk_buff *skb,
 		}
 	}
 	list_for_each_entry_rcu(addr6, &iface->addr6_list, list) {
-		if (addr6->valid || iter_addr6++ < skip_addr6)
+		if (!addr6->valid || iter_addr6++ < skip_addr6)
 			continue;
 		if (netlbl_unlabel_staticlist_gen(NLBL_UNLABEL_C_STATICLISTDEF,
 					   iface,
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 9b97f80..349aba1 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -886,7 +886,7 @@ retry:
 		return netlink_unicast_kernel(sk, skb);
 
 	if (sk_filter(sk, skb)) {
-		int err = skb->len;
+		err = skb->len;
 		kfree_skb(skb);
 		sock_put(sk);
 		return err;
diff --git a/net/netlink/attr.c b/net/netlink/attr.c
index 47bbf45..2d106cf 100644
--- a/net/netlink/attr.c
+++ b/net/netlink/attr.c
@@ -132,6 +132,7 @@ errout:
  * @maxtype: maximum attribute type to be expected
  * @head: head of attribute stream
  * @len: length of attribute stream
+ * @policy: validation policy
  *
  * Parses a stream of attributes and stores a pointer to each attribute in
  * the tb array accessable via the attribute type. Attributes with a type
@@ -194,7 +195,7 @@ struct nlattr *nla_find(struct nlattr *head, int len, int attrtype)
 /**
  * nla_strlcpy - Copy string attribute payload into a sized buffer
  * @dst: where to copy the string to
- * @src: attribute to copy the string from
+ * @nla: attribute to copy the string from
  * @dstsize: size of destination buffer
  *
  * Copies at most dstsize - 1 bytes into the destination buffer.
@@ -340,9 +341,9 @@ struct nlattr *nla_reserve(struct sk_buff *skb, int attrtype, int attrlen)
 }
 
 /**
- * nla_reserve - reserve room for attribute without header
+ * nla_reserve_nohdr - reserve room for attribute without header
  * @skb: socket buffer to reserve room on
- * @len: length of attribute payload
+ * @attrlen: length of attribute payload
  *
  * Reserves room for attribute payload without a header.
  *
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 82adfe6..9437b27 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -106,17 +106,6 @@ config NET_SCH_PRIO
 	  To compile this code as a module, choose M here: the
 	  module will be called sch_prio.
 
-config NET_SCH_RR
-	tristate "Multi Band Round Robin Queuing (RR)"
-	select NET_SCH_PRIO
-	---help---
-	  Say Y here if you want to use an n-band round robin packet
-	  scheduler.
-
-	  The module uses sch_prio for its framework and is aliased as
-	  sch_rr, so it will load sch_prio, although it is referred
-	  to using sch_rr.
-
 config NET_SCH_RED
 	tristate "Random Early Detection (RED)"
 	---help---
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index c40773c..10f01ad 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1252,12 +1252,12 @@ void tcf_destroy(struct tcf_proto *tp)
 	kfree(tp);
 }
 
-void tcf_destroy_chain(struct tcf_proto *fl)
+void tcf_destroy_chain(struct tcf_proto **fl)
 {
 	struct tcf_proto *tp;
 
-	while ((tp = fl) != NULL) {
-		fl = tp->next;
+	while ((tp = *fl) != NULL) {
+		*fl = tp->next;
 		tcf_destroy(tp);
 	}
 }
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index 3352734..db0e23a 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -160,7 +160,7 @@ static void atm_tc_put(struct Qdisc *sch, unsigned long cl)
 	*prev = flow->next;
 	pr_debug("atm_tc_put: qdisc %p\n", flow->q);
 	qdisc_destroy(flow->q);
-	tcf_destroy_chain(flow->filter_list);
+	tcf_destroy_chain(&flow->filter_list);
 	if (flow->sock) {
 		pr_debug("atm_tc_put: f_count %d\n",
 			file_count(flow->sock->file));
@@ -586,10 +586,11 @@ static void atm_tc_destroy(struct Qdisc *sch)
 	struct atm_flow_data *flow;
 
 	pr_debug("atm_tc_destroy(sch %p,[qdisc %p])\n", sch, p);
+	for (flow = p->flows; flow; flow = flow->next)
+		tcf_destroy_chain(&flow->filter_list);
+
 	/* races ? */
 	while ((flow = p->flows)) {
-		tcf_destroy_chain(flow->filter_list);
-		flow->filter_list = NULL;
 		if (flow->ref > 1)
 			printk(KERN_ERR "atm_destroy: %p->ref = %d\n", flow,
 			       flow->ref);
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 09969c1..2a3c97f 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1704,7 +1704,7 @@ static void cbq_destroy_class(struct Qdisc *sch, struct cbq_class *cl)
 
 	BUG_TRAP(!cl->filters);
 
-	tcf_destroy_chain(cl->filter_list);
+	tcf_destroy_chain(&cl->filter_list);
 	qdisc_destroy(cl->q);
 	qdisc_put_rtab(cl->R_tab);
 	gen_kill_estimator(&cl->bstats, &cl->rate_est);
@@ -1728,10 +1728,8 @@ cbq_destroy(struct Qdisc* sch)
 	 * be bound to classes which have been destroyed already. --TGR '04
 	 */
 	for (h = 0; h < 16; h++) {
-		for (cl = q->classes[h]; cl; cl = cl->next) {
-			tcf_destroy_chain(cl->filter_list);
-			cl->filter_list = NULL;
-		}
+		for (cl = q->classes[h]; cl; cl = cl->next)
+			tcf_destroy_chain(&cl->filter_list);
 	}
 	for (h = 0; h < 16; h++) {
 		struct cbq_class *next;
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 64465ba..c4c1317 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -416,7 +416,7 @@ static void dsmark_destroy(struct Qdisc *sch)
 
 	pr_debug("dsmark_destroy(sch %p,[qdisc %p])\n", sch, p);
 
-	tcf_destroy_chain(p->filter_list);
+	tcf_destroy_chain(&p->filter_list);
 	qdisc_destroy(p->q);
 	kfree(p->mask);
 }
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index d355e5e..13afa72 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -468,7 +468,7 @@ struct Qdisc *qdisc_alloc(struct net_device *dev, struct Qdisc_ops *ops)
 
 	return sch;
 errout:
-	return ERR_PTR(-err);
+	return ERR_PTR(err);
 }
 
 struct Qdisc * qdisc_create_dflt(struct net_device *dev, struct Qdisc_ops *ops,
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index fdfaa3f..e817aa0 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1123,7 +1123,7 @@ hfsc_destroy_class(struct Qdisc *sch, struct hfsc_class *cl)
 {
 	struct hfsc_sched *q = qdisc_priv(sch);
 
-	tcf_destroy_chain(cl->filter_list);
+	tcf_destroy_chain(&cl->filter_list);
 	qdisc_destroy(cl->qdisc);
 	gen_kill_estimator(&cl->bstats, &cl->rate_est);
 	if (cl != &q->root)
@@ -1541,6 +1541,10 @@ hfsc_destroy_qdisc(struct Qdisc *sch)
 	unsigned int i;
 
 	for (i = 0; i < HFSC_HSIZE; i++) {
+		list_for_each_entry(cl, &q->clhash[i], hlist)
+			tcf_destroy_chain(&cl->filter_list);
+	}
+	for (i = 0; i < HFSC_HSIZE; i++) {
 		list_for_each_entry_safe(cl, next, &q->clhash[i], hlist)
 			hfsc_destroy_class(sch, cl);
 	}
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 6807c97..3fb58f4 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1238,7 +1238,7 @@ static void htb_destroy_class(struct Qdisc *sch, struct htb_class *cl)
 	qdisc_put_rtab(cl->rate);
 	qdisc_put_rtab(cl->ceil);
 
-	tcf_destroy_chain(cl->filter_list);
+	tcf_destroy_chain(&cl->filter_list);
 
 	while (!list_empty(&cl->children))
 		htb_destroy_class(sch, list_entry(cl->children.next,
@@ -1267,7 +1267,7 @@ static void htb_destroy(struct Qdisc *sch)
 	   and surprisingly it worked in 2.4. But it must precede it
 	   because filter need its target class alive to be able to call
 	   unbind_filter on it (without Oops). */
-	tcf_destroy_chain(q->filter_list);
+	tcf_destroy_chain(&q->filter_list);
 
 	while (!list_empty(&q->root))
 		htb_destroy_class(sch, list_entry(q->root.next,
diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c
index 274b1dd..956c80a 100644
--- a/net/sched/sch_ingress.c
+++ b/net/sched/sch_ingress.c
@@ -104,7 +104,7 @@ static void ingress_destroy(struct Qdisc *sch)
 {
 	struct ingress_qdisc_data *p = qdisc_priv(sch);
 
-	tcf_destroy_chain(p->filter_list);
+	tcf_destroy_chain(&p->filter_list);
 }
 
 static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 4aa2b45..5532f10 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -219,7 +219,7 @@ prio_destroy(struct Qdisc* sch)
 	int prio;
 	struct prio_sched_data *q = qdisc_priv(sch);
 
-	tcf_destroy_chain(q->filter_list);
+	tcf_destroy_chain(&q->filter_list);
 	for (prio=0; prio<q->bands; prio++)
 		qdisc_destroy(q->queues[prio]);
 }
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index f0463d7..6a97afb 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -520,7 +520,7 @@ static void sfq_destroy(struct Qdisc *sch)
 {
 	struct sfq_sched_data *q = qdisc_priv(sch);
 
-	tcf_destroy_chain(q->filter_list);
+	tcf_destroy_chain(&q->filter_list);
 	q->perturb_period = 0;
 	del_timer_sync(&q->perturb_timer);
 }
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 5905d567..81ae3d6 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -1144,20 +1144,20 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
 		case RPC_GSS_SVC_NONE:
 			break;
 		case RPC_GSS_SVC_INTEGRITY:
+			/* placeholders for length and seq. number: */
+			svc_putnl(resv, 0);
+			svc_putnl(resv, 0);
 			if (unwrap_integ_data(&rqstp->rq_arg,
 					gc->gc_seq, rsci->mechctx))
 				goto garbage_args;
+			break;
+		case RPC_GSS_SVC_PRIVACY:
 			/* placeholders for length and seq. number: */
 			svc_putnl(resv, 0);
 			svc_putnl(resv, 0);
-			break;
-		case RPC_GSS_SVC_PRIVACY:
 			if (unwrap_priv_data(rqstp, &rqstp->rq_arg,
 					gc->gc_seq, rsci->mechctx))
 				goto garbage_args;
-			/* placeholders for length and seq. number: */
-			svc_putnl(resv, 0);
-			svc_putnl(resv, 0);
 			break;
 		default:
 			goto auth_err;
@@ -1170,8 +1170,6 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp)
 		goto out;
 	}
 garbage_args:
-	/* Restore write pointer to its original value: */
-	xdr_ressize_check(rqstp, reject_stat);
 	ret = SVC_GARBAGE;
 	goto out;
 auth_err:
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 0517967..e6fb21b 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -243,10 +243,10 @@ int rpcb_getport_sync(struct sockaddr_in *sin, u32 prog, u32 vers, int prot)
 }
 EXPORT_SYMBOL_GPL(rpcb_getport_sync);
 
-static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, int version)
+static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, struct rpc_procinfo *proc)
 {
 	struct rpc_message msg = {
-		.rpc_proc = rpcb_next_version[version].rpc_proc,
+		.rpc_proc = proc,
 		.rpc_argp = map,
 		.rpc_resp = &map->r_port,
 	};
@@ -271,6 +271,7 @@ static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbi
 void rpcb_getport_async(struct rpc_task *task)
 {
 	struct rpc_clnt *clnt = task->tk_client;
+	struct rpc_procinfo *proc;
 	u32 bind_version;
 	struct rpc_xprt *xprt = task->tk_xprt;
 	struct rpc_clnt	*rpcb_clnt;
@@ -280,7 +281,6 @@ void rpcb_getport_async(struct rpc_task *task)
 	struct sockaddr *sap = (struct sockaddr *)&addr;
 	size_t salen;
 	int status;
-	struct rpcb_info *info;
 
 	dprintk("RPC: %5u %s(%s, %u, %u, %d)\n",
 		task->tk_pid, __func__,
@@ -313,10 +313,12 @@ void rpcb_getport_async(struct rpc_task *task)
 	/* Don't ever use rpcbind v2 for AF_INET6 requests */
 	switch (sap->sa_family) {
 	case AF_INET:
-		info = rpcb_next_version;
+		proc = rpcb_next_version[xprt->bind_index].rpc_proc;
+		bind_version = rpcb_next_version[xprt->bind_index].rpc_vers;
 		break;
 	case AF_INET6:
-		info = rpcb_next_version6;
+		proc = rpcb_next_version6[xprt->bind_index].rpc_proc;
+		bind_version = rpcb_next_version6[xprt->bind_index].rpc_vers;
 		break;
 	default:
 		status = -EAFNOSUPPORT;
@@ -324,14 +326,13 @@ void rpcb_getport_async(struct rpc_task *task)
 				task->tk_pid, __func__);
 		goto bailout_nofree;
 	}
-	if (info[xprt->bind_index].rpc_proc == NULL) {
+	if (proc == NULL) {
 		xprt->bind_index = 0;
 		status = -EPFNOSUPPORT;
 		dprintk("RPC: %5u %s: no more getport versions available\n",
 			task->tk_pid, __func__);
 		goto bailout_nofree;
 	}
-	bind_version = info[xprt->bind_index].rpc_vers;
 
 	dprintk("RPC: %5u %s: trying rpcbind version %u\n",
 		task->tk_pid, __func__, bind_version);
@@ -361,22 +362,20 @@ void rpcb_getport_async(struct rpc_task *task)
 	map->r_addr = rpc_peeraddr2str(rpcb_clnt, RPC_DISPLAY_UNIVERSAL_ADDR);
 	map->r_owner = RPCB_OWNER_STRING;	/* ignored for GETADDR */
 
-	child = rpcb_call_async(rpcb_clnt, map, xprt->bind_index);
+	child = rpcb_call_async(rpcb_clnt, map, proc);
 	rpc_release_client(rpcb_clnt);
 	if (IS_ERR(child)) {
 		status = -EIO;
+		/* rpcb_map_release() has freed the arguments */
 		dprintk("RPC: %5u %s: rpc_run_task failed\n",
 			task->tk_pid, __func__);
-		goto bailout;
+		goto bailout_nofree;
 	}
 	rpc_put_task(child);
 
 	task->tk_xprt->stat.bind_count++;
 	return;
 
-bailout:
-	kfree(map);
-	xprt_put(xprt);
 bailout_nofree:
 	rpcb_wake_rpcbind_waiters(xprt, status);
 bailout_nowake:
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 657835f..783317d 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -487,8 +487,8 @@ static int unix_socketpair(struct socket *, struct socket *);
 static int unix_accept(struct socket *, struct socket *, int);
 static int unix_getname(struct socket *, struct sockaddr *, int *, int);
 static unsigned int unix_poll(struct file *, struct socket *, poll_table *);
-static unsigned int unix_datagram_poll(struct file *, struct socket *,
-				       poll_table *);
+static unsigned int unix_dgram_poll(struct file *, struct socket *,
+				    poll_table *);
 static int unix_ioctl(struct socket *, unsigned int, unsigned long);
 static int unix_shutdown(struct socket *, int);
 static int unix_stream_sendmsg(struct kiocb *, struct socket *,
@@ -534,7 +534,7 @@ static const struct proto_ops unix_dgram_ops = {
 	.socketpair =	unix_socketpair,
 	.accept =	sock_no_accept,
 	.getname =	unix_getname,
-	.poll =		unix_datagram_poll,
+	.poll =		unix_dgram_poll,
 	.ioctl =	unix_ioctl,
 	.listen =	sock_no_listen,
 	.shutdown =	unix_shutdown,
@@ -555,7 +555,7 @@ static const struct proto_ops unix_seqpacket_ops = {
 	.socketpair =	unix_socketpair,
 	.accept =	unix_accept,
 	.getname =	unix_getname,
-	.poll =		unix_datagram_poll,
+	.poll =		unix_dgram_poll,
 	.ioctl =	unix_ioctl,
 	.listen =	unix_listen,
 	.shutdown =	unix_shutdown,
@@ -1994,29 +1994,13 @@ static unsigned int unix_poll(struct file * file, struct socket *sock, poll_tabl
 	return mask;
 }
 
-static unsigned int unix_datagram_poll(struct file *file, struct socket *sock,
-				       poll_table *wait)
+static unsigned int unix_dgram_poll(struct file *file, struct socket *sock,
+				    poll_table *wait)
 {
-	struct sock *sk = sock->sk, *peer;
-	unsigned int mask;
+	struct sock *sk = sock->sk, *other;
+	unsigned int mask, writable;
 
 	poll_wait(file, sk->sk_sleep, wait);
-
-	peer = unix_peer_get(sk);
-	if (peer) {
-		if (peer != sk) {
-			/*
-			 * Writability of a connected socket additionally
-			 * depends on the state of the receive queue of the
-			 * peer.
-			 */
-			poll_wait(file, &unix_sk(peer)->peer_wait, wait);
-		} else {
-			sock_put(peer);
-			peer = NULL;
-		}
-	}
-
 	mask = 0;
 
 	/* exceptional events? */
@@ -2042,14 +2026,26 @@ static unsigned int unix_datagram_poll(struct file *file, struct socket *sock,
 	}
 
 	/* writable? */
-	if (unix_writable(sk) && !(peer && unix_recvq_full(peer)))
+	writable = unix_writable(sk);
+	if (writable) {
+		other = unix_peer_get(sk);
+		if (other) {
+			if (unix_peer(other) != sk) {
+				poll_wait(file, &unix_sk(other)->peer_wait,
+					  wait);
+				if (unix_recvq_full(other))
+					writable = 0;
+			}
+
+			sock_put(other);
+		}
+	}
+
+	if (writable)
 		mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
 	else
 		set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
 
-	if (peer)
-		sock_put(peer);
-
 	return mask;
 }
 
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 185488d..855bff4 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -80,6 +80,23 @@ static const struct ieee80211_channel_range ieee80211_JP_channels[] = {
 				     IEEE80211_CHAN_RADAR),
 };
 
+static const struct ieee80211_channel_range ieee80211_EU_channels[] = {
+	/* IEEE 802.11b/g, channels 1..13 */
+	RANGE_PWR(2412, 2472, 20, 6, 0),
+	/* IEEE 802.11a, channel 36*/
+	RANGE_PWR(5180, 5180, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+	/* IEEE 802.11a, channel 40*/
+	RANGE_PWR(5200, 5200, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+	/* IEEE 802.11a, channel 44*/
+	RANGE_PWR(5220, 5220, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+	/* IEEE 802.11a, channels 48..64 */
+	RANGE_PWR(5240, 5320, 23, 6, IEEE80211_CHAN_NO_IBSS |
+				     IEEE80211_CHAN_RADAR),
+	/* IEEE 802.11a, channels 100..140 */
+	RANGE_PWR(5500, 5700, 30, 6, IEEE80211_CHAN_NO_IBSS |
+				     IEEE80211_CHAN_RADAR),
+};
+
 #define REGDOM(_code)							\
 	{								\
 		.code = __stringify(_code),				\
@@ -90,6 +107,7 @@ static const struct ieee80211_channel_range ieee80211_JP_channels[] = {
 static const struct ieee80211_regdomain ieee80211_regdoms[] = {
 	REGDOM(US),
 	REGDOM(JP),
+	REGDOM(EU),
 };