[XFS] kill INDUCE_IO_ERROR

[linux-2.6-omap-h63xx.git] / net / ipv6 / af_inet6.c

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index e84b3fd17fb4de37e3212bd55892f132f38d6098..95055f8c3f35eb18d17f4848fe0ae72ed648bbc2 100644 (file)
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -7,8 +7,6 @@
  *
  *     Adapted from linux/net/ipv4/af_inet.c
  *
- *     $Id: af_inet6.c,v 1.66 2002/02/01 22:01:04 davem Exp $
- *
  *     Fixes:
  *     piggy, Karl Knutson     :       Socket protocol table
  *     Hideaki YOSHIFUJI       :       sin6_scope_id support
@@ -61,9 +59,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
-#ifdef CONFIG_IPV6_MROUTE
 #include <linux/mroute6.h>
-#endif
 
 MODULE_AUTHOR("Cast of dozens");
 MODULE_DESCRIPTION("IPv6 protocol stack for Linux");
@@ -87,7 +83,6 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol)
        struct inet_sock *inet;
        struct ipv6_pinfo *np;
        struct sock *sk;
-       struct list_head *p;
        struct inet_protosw *answer;
        struct proto *answer_prot;
        unsigned char answer_flags;
@@ -101,13 +96,12 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol)
                build_ehash_secret();
 
        /* Look for the requested type/protocol pair. */
-       answer = NULL;
 lookup_protocol:
        err = -ESOCKTNOSUPPORT;
        rcu_read_lock();
-       list_for_each_rcu(p, &inetsw6[sock->type]) {
-               answer = list_entry(p, struct inet_protosw, list);
+       list_for_each_entry_rcu(answer, &inetsw6[sock->type], list) {
 
+               err = 0;
                /* Check the non-wild match. */
                if (protocol == answer->protocol) {
                        if (protocol != IPPROTO_IP)
@@ -122,10 +116,9 @@ lookup_protocol:
                                break;
                }
                err = -EPROTONOSUPPORT;
-               answer = NULL;
        }
 
-       if (!answer) {
+       if (err) {
                if (try_loading_module < 2) {
                        rcu_read_unlock();
                        /*
@@ -157,7 +150,7 @@ lookup_protocol:
        answer_flags = answer->flags;
        rcu_read_unlock();
 
-       BUG_TRAP(answer_prot->slab != NULL);
+       WARN_ON(answer_prot->slab == NULL);
 
        err = -ENOBUFS;
        sk = sk_alloc(net, PF_INET6, GFP_KERNEL, answer_prot);
@@ -373,7 +366,7 @@ int inet6_release(struct socket *sock)
 
 EXPORT_SYMBOL(inet6_release);
 
-int inet6_destroy_sock(struct sock *sk)
+void inet6_destroy_sock(struct sock *sk)
 {
        struct ipv6_pinfo *np = inet6_sk(sk);
        struct sk_buff *skb;
@@ -391,8 +384,6 @@ int inet6_destroy_sock(struct sock *sk)
 
        if ((opt = xchg(&np->opt, NULL)) != NULL)
                sock_kfree_s(sk, opt, opt->tot_len);
-
-       return 0;
 }
 
 EXPORT_SYMBOL_GPL(inet6_destroy_sock);
@@ -943,6 +934,11 @@ static int __init inet6_init(void)
        if (err)
                goto out_unregister_sock;
 
+#ifdef CONFIG_SYSCTL
+       err = ipv6_static_sysctl_register();
+       if (err)
+               goto static_sysctl_fail;
+#endif
        /*
         *      ipngwg API draft makes clear that the correct semantics
         *      for TCP and UDP is to consider one TCP and UDP instance
@@ -956,9 +952,9 @@ static int __init inet6_init(void)
        err = icmpv6_init();
        if (err)
                goto icmp_fail;
-#ifdef CONFIG_IPV6_MROUTE
-       ip6_mr_init();
-#endif
+       err = ip6_mr_init();
+       if (err)
+               goto ipmr_fail;
        err = ndisc_init();
        if (err)
                goto ndisc_fail;
@@ -1061,10 +1057,16 @@ netfilter_fail:
 igmp_fail:
        ndisc_cleanup();
 ndisc_fail:
+       ip6_mr_cleanup();
+ipmr_fail:
        icmpv6_cleanup();
 icmp_fail:
        unregister_pernet_subsys(&inet6_net_ops);
 register_pernet_fail:
+#ifdef CONFIG_SYSCTL
+       ipv6_static_sysctl_unregister();
+static_sysctl_fail:
+#endif
        cleanup_ipv6_mibs();
 out_unregister_sock:
        sock_unregister(PF_INET6);
@@ -1115,10 +1117,14 @@ static void __exit inet6_exit(void)
        ipv6_netfilter_fini();
        igmp6_cleanup();
        ndisc_cleanup();
+       ip6_mr_cleanup();
        icmpv6_cleanup();
        rawv6_exit();
 
        unregister_pernet_subsys(&inet6_net_ops);
+#ifdef CONFIG_SYSCTL
+       ipv6_static_sysctl_unregister();
+#endif
        cleanup_ipv6_mibs();
        proto_unregister(&rawv6_prot);
        proto_unregister(&udplitev6_prot);