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

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [XFRM] STATE: Fix to respond error to get operation if no matching entry exists.
  [NET]: Re-fix of doc-comment in sock.h
  [6PACK]: Masking bug in 6pack driver.
  [NET]: Fix kfifo_alloc() error check.
  [UDP]: Make udp_encap_rcv use pskb_may_pull
  [NETFILTER]: H.323 conntrack: fix crash with CONFIG_IP_NF_CT_ACCT

drivers/net/hamradio/6pack.c

@@ -914,7 +914,7 @@ static void decode_prio_command(struct sixpack *sp, unsigned char cmd)
 					printk(KERN_DEBUG "6pack: protocol violation\n");
 				else
 					sp->status = 0;
-				cmd &= !SIXP_RX_DCD_MASK;
+				cmd &= ~SIXP_RX_DCD_MASK;
 		}
 		sp->status = cmd & SIXP_PRIO_DATA_MASK;
 	} else { /* output watchdog char if idle */

include/net/sock.h

@@ -883,18 +883,23 @@ static inline int sk_filter(struct sock *sk, struct sk_buff *skb)
 }
 
 /**
- *	sk_filter_release: Release a socket filter
- *	@rcu: rcu_head that contains the sk_filter info to remove
- *
- *	Remove a filter from a socket and release its resources.
+ * 	sk_filter_rcu_free: Free a socket filter
+ *	@rcu: rcu_head that contains the sk_filter to free
  */
-
 static inline void sk_filter_rcu_free(struct rcu_head *rcu)
 {
 	struct sk_filter *fp = container_of(rcu, struct sk_filter, rcu);
 	kfree(fp);
 }
 
+/**
+ *	sk_filter_release: Release a socket filter
+ *	@sk: socket
+ *	@fp: filter to remove
+ *
+ *	Remove a filter from a socket and release its resources.
+ */
+
 static inline void sk_filter_release(struct sock *sk, struct sk_filter *fp)
 {
 	unsigned int size = sk_filter_len(fp);

net/dccp/probe.c

@@ -160,6 +160,8 @@ static __init int dccpprobe_init(void)
 	init_waitqueue_head(&dccpw.wait);
 	spin_lock_init(&dccpw.lock);
 	dccpw.fifo = kfifo_alloc(bufsize, GFP_KERNEL, &dccpw.lock);
+	if (IS_ERR(dccpw.fifo))
+		return PTR_ERR(dccpw.fifo);
 
 	if (!proc_net_fops_create(procname, S_IRUSR, &dccpprobe_fops))
 		goto err0;

net/ipv4/netfilter/ip_conntrack_helper_h323.c

@@ -1417,7 +1417,7 @@ static int process_rcf(struct sk_buff **pskb, struct ip_conntrack *ct,
 		DEBUGP
 		    ("ip_ct_ras: set RAS connection timeout to %u seconds\n",
 		     info->timeout);
-		ip_ct_refresh_acct(ct, ctinfo, NULL, info->timeout * HZ);
+		ip_ct_refresh(ct, *pskb, info->timeout * HZ);
 
 		/* Set expect timeout */
 		read_lock_bh(&ip_conntrack_lock);
@@ -1465,7 +1465,7 @@ static int process_urq(struct sk_buff **pskb, struct ip_conntrack *ct,
 	info->sig_port[!dir] = 0;
 
 	/* Give it 30 seconds for UCF or URJ */
-	ip_ct_refresh_acct(ct, ctinfo, NULL, 30 * HZ);
+	ip_ct_refresh(ct, *pskb, 30 * HZ);
 
 	return 0;
 }

net/ipv4/tcp_probe.c

@@ -156,6 +156,8 @@ static __init int tcpprobe_init(void)
 	init_waitqueue_head(&tcpw.wait);
 	spin_lock_init(&tcpw.lock);
 	tcpw.fifo = kfifo_alloc(bufsize, GFP_KERNEL, &tcpw.lock);
+	if (IS_ERR(tcpw.fifo))
+		return PTR_ERR(tcpw.fifo);
 
 	if (!proc_net_fops_create(procname, S_IRUSR, &tcpprobe_fops))
 		goto err0;

net/ipv4/udp.c

@@ -928,23 +928,32 @@ static int udp_encap_rcv(struct sock * sk, struct sk_buff *skb)
 	return 1; 
 #else
 	struct udp_sock *up = udp_sk(sk);
-  	struct udphdr *uh = skb->h.uh;
+  	struct udphdr *uh;
 	struct iphdr *iph;
 	int iphlen, len;
 
-	__u8 *udpdata = (__u8 *)uh + sizeof(struct udphdr);
-	__be32 *udpdata32 = (__be32 *)udpdata;
+	__u8 *udpdata;
+	__be32 *udpdata32;
 	__u16 encap_type = up->encap_type;
 
 	/* if we're overly short, let UDP handle it */
-	if (udpdata > skb->tail)
+	len = skb->len - sizeof(struct udphdr);
+	if (len <= 0)
 		return 1;
 
 	/* if this is not encapsulated socket, then just return now */
 	if (!encap_type)
 		return 1;
 
-	len = skb->tail - udpdata;
+	/* If this is a paged skb, make sure we pull up
+	 * whatever data we need to look at. */
+	if (!pskb_may_pull(skb, sizeof(struct udphdr) + min(len, 8)))
+		return 1;
+
+	/* Now we can get the pointers */
+	uh = skb->h.uh;
+	udpdata = (__u8 *)uh + sizeof(struct udphdr);
+	udpdata32 = (__be32 *)udpdata;
 
 	switch (encap_type) {
 	default:

net/xfrm/xfrm_user.c

@@ -495,6 +495,7 @@ static struct xfrm_state *xfrm_user_state_lookup(struct xfrm_usersa_id *p,
 			goto out;
 		}
 
+		err = -ESRCH;
 		x = xfrm_state_lookup_byaddr(&p->daddr, saddr, p->proto,
 					     p->family);
 	}