diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index cda936b77d222b2bb68cc4b79f8ba1e468cd9de3..1583c5ef963f06013a455634b5b8604916c1289c 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -810,6 +810,7 @@ static int vlan_ioctl_handler(void __user *arg)
 		err = -EINVAL;
 		break;
 	case GET_VLAN_REALDEV_NAME_CMD:
+		err = 0;
 		vlan_dev_get_realdev_name(dev, args.u.device2);
 		if (copy_to_user(arg, &args,
 				 sizeof(struct vlan_ioctl_args))) {
@@ -818,6 +819,7 @@ static int vlan_ioctl_handler(void __user *arg)
 		break;
 
 	case GET_VLAN_VID_CMD:
+		err = 0;
 		vlan_dev_get_vid(dev, &vid);
 		args.u.VID = vid;
 		if (copy_to_user(arg, &args,
diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 031bfa4a51fc0c8a25d7d7f92810183f577cbaea..457815fb558440fefeedb04a01d22dccdffcf27d 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/net/bridge/netfilter/ebt_log.c
@@ -9,7 +9,6 @@
  *
  */
 
-#include <linux/in.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_log.h>
 #include <linux/netfilter.h>
@@ -196,10 +195,8 @@ static int __init ebt_log_init(void)
 	ret = ebt_register_watcher(&log);
 	if (ret < 0)
 		return ret;
-	ret = nf_log_register(PF_BRIDGE, &ebt_log_logger);
-	if (ret < 0 && ret != -EEXIST)
-		ebt_unregister_watcher(&log);
-	return ret;
+	nf_log_register(PF_BRIDGE, &ebt_log_logger);
+	return 0;
 }
 
 static void __exit ebt_log_fini(void)
diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 9411db62591754b5592a783040e48763ddc92514..204c968fa86dfe6cd8fa96cf7725880548cbb074 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -36,7 +36,6 @@
 #include <linux/timer.h>
 #include <linux/netlink.h>
 #include <linux/netdevice.h>
-#include <linux/module.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter_bridge/ebt_ulog.h>
 #include <net/sock.h>
@@ -308,12 +307,8 @@ static int __init ebt_ulog_init(void)
 	else if ((ret = ebt_register_watcher(&ulog)))
 		sock_release(ebtulognl->sk_socket);
 
-	if (nf_log_register(PF_BRIDGE, &ebt_ulog_logger) < 0) {
-		printk(KERN_WARNING "ebt_ulog: not logging via ulog "
-		       "since somebody else already registered for PF_BRIDGE\n");
-		/* we cannot make module load fail here, since otherwise
-		 * ebtables userspace would abort */
-	}
+	if (ret == 0)
+		nf_log_register(PF_BRIDGE, &ebt_ulog_logger);
 
 	return ret;
 }
diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c
index 5937ad150b9f8a77b855857cb6c828c0b3e7c154..127a5e89bf14c6f75ae4f83a2bcf34abf7783232 100644
--- a/net/ipv4/netfilter/ipt_LOG.c
+++ b/net/ipv4/netfilter/ipt_LOG.c
@@ -479,10 +479,8 @@ static int __init ipt_log_init(void)
 	ret = xt_register_target(&ipt_log_reg);
 	if (ret < 0)
 		return ret;
-	ret = nf_log_register(PF_INET, &ipt_log_logger);
-	if (ret < 0 && ret != -EEXIST)
-		xt_unregister_target(&ipt_log_reg);
-	return ret;
+	nf_log_register(PF_INET, &ipt_log_logger);
+	return 0;
 }
 
 static void __exit ipt_log_fini(void)
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index b05327ebd3320fe01768ed420da40a2751514587..6ab99001dcccb321bedb88c57b95f812e9aef412 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -493,10 +493,8 @@ static int __init ip6t_log_init(void)
 	ret = xt_register_target(&ip6t_log_reg);
 	if (ret < 0)
 		return ret;
-	ret = nf_log_register(PF_INET6, &ip6t_logger);
-	if (ret < 0 && ret != -EEXIST)
-		xt_unregister_target(&ip6t_log_reg);
-	return ret;
+	nf_log_register(PF_INET6, &ip6t_logger);
+	return 0;
 }
 
 static void __exit ip6t_log_fini(void)
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index d67fb1ef751edc270eaa832d4048c8bff4faa5a0..f10f3689d6710274f90676c8dccc68d1fc1dc43d 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -633,6 +633,7 @@ static int tcp_v6_md5_do_del(struct sock *sk, struct in6_addr *peer)
 			if (tp->md5sig_info->entries6 == 0) {
 				kfree(tp->md5sig_info->keys6);
 				tp->md5sig_info->keys6 = NULL;
+				tp->md5sig_info->alloced6 = 0;
 
 				tcp_free_md5sig_pool();
 
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 87ad3ccf8affe84f10e7d2d792799b2a4e2a2dbd..eb3fe7401466544483d6356dbd28e3da0fca873c 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -8,7 +8,6 @@
 
 #include <linux/types.h>
 #include <linux/timer.h>
-#include <linux/netfilter.h>
 #include <linux/module.h>
 #include <linux/in.h>
 #include <linux/tcp.h>
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index 13d94a025723608cd3a5e1ec2d5ec3f80ba55df0..2a2fd1a764ea129ba34745f0adce87a6176ee145 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -9,7 +9,6 @@
 #include <linux/types.h>
 #include <linux/timer.h>
 #include <linux/module.h>
-#include <linux/netfilter.h>
 #include <linux/udp.h>
 #include <linux/seq_file.h>
 #include <linux/skbuff.h>
diff --git a/net/netfilter/nf_conntrack_proto_udplite.c b/net/netfilter/nf_conntrack_proto_udplite.c
index 93e747b5396ec420943916892d31d0699fbdec01..b906b413997c8db589df41f97561c9e668aa9d93 100644
--- a/net/netfilter/nf_conntrack_proto_udplite.c
+++ b/net/netfilter/nf_conntrack_proto_udplite.c
@@ -10,7 +10,6 @@
 #include <linux/types.h>
 #include <linux/timer.h>
 #include <linux/module.h>
-#include <linux/netfilter.h>
 #include <linux/udp.h>
 #include <linux/seq_file.h>
 #include <linux/skbuff.h>
diff --git a/net/netfilter/xt_physdev.c b/net/netfilter/xt_physdev.c
index f47cab7a696d6c8487afcc98ae75ddbf5c596cc2..a4bab043a6d1b185122a108ec3ae27fa6b776db6 100644
--- a/net/netfilter/xt_physdev.c
+++ b/net/netfilter/xt_physdev.c
@@ -13,7 +13,6 @@
 #include <linux/netfilter_bridge.h>
 #include <linux/netfilter/xt_physdev.h>
 #include <linux/netfilter/x_tables.h>
-#include <linux/netfilter_bridge.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>");
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index e146531faf1d349434c89306eafc7968f506baa1..8c11ca4a2121692614ac43064c2718695d11bf6b 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -184,7 +184,7 @@ int genl_register_mc_group(struct genl_family *family,
 	}
 
 	err = netlink_change_ngroups(genl_sock,
-				     sizeof(unsigned long) * NETLINK_GENERIC);
+				     mc_groups_longs * BITS_PER_LONG);
 	if (err)
 		goto out;
 
@@ -196,10 +196,22 @@ int genl_register_mc_group(struct genl_family *family,
 	genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, grp);
  out:
 	genl_unlock();
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL(genl_register_mc_group);
 
+static void __genl_unregister_mc_group(struct genl_family *family,
+				       struct genl_multicast_group *grp)
+{
+	BUG_ON(grp->family != family);
+	netlink_clear_multicast_users(genl_sock, grp->id);
+	clear_bit(grp->id, mc_groups);
+	list_del(&grp->list);
+	genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, grp);
+	grp->id = 0;
+	grp->family = NULL;
+}
+
 /**
  * genl_unregister_mc_group - unregister a multicast group
  *
@@ -217,14 +229,8 @@ EXPORT_SYMBOL(genl_register_mc_group);
 void genl_unregister_mc_group(struct genl_family *family,
 			      struct genl_multicast_group *grp)
 {
-	BUG_ON(grp->family != family);
 	genl_lock();
-	netlink_clear_multicast_users(genl_sock, grp->id);
-	clear_bit(grp->id, mc_groups);
-	list_del(&grp->list);
-	genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, grp);
-	grp->id = 0;
-	grp->family = NULL;
+	__genl_unregister_mc_group(family, grp);
 	genl_unlock();
 }
 
@@ -232,8 +238,10 @@ static void genl_unregister_mc_groups(struct genl_family *family)
 {
 	struct genl_multicast_group *grp, *tmp;
 
+	genl_lock();
 	list_for_each_entry_safe(grp, tmp, &family->mcast_groups, list)
-		genl_unregister_mc_group(family, grp);
+		__genl_unregister_mc_group(family, grp);
+	genl_unlock();
 }
 
 /**