Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=853cbbaaa4ccdf221be5ab6afe967aa9998546b7
Commit:     853cbbaaa4ccdf221be5ab6afe967aa9998546b7
Parent:     248b238dc960a42aa235057ba0a51a98ae2b0f0d
Author:     Daniel Lezcano <[EMAIL PROTECTED]>
AuthorDate: Tue Dec 11 02:24:29 2007 -0800
Committer:  David S. Miller <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 14:57:11 2008 -0800

    [IPV6]: make frag to return an error at initialization
    
    This patch makes the frag_init to return an error code, so the af_inet6
    module can handle the error.
    
    Signed-off-by: Daniel Lezcano <[EMAIL PROTECTED]>
    Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
 include/net/transp_v6.h |    3 ++-
 net/ipv6/af_inet6.c     |    8 ++++++--
 net/ipv6/reassembly.c   |   16 +++++++++++++---
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index 610b1bb..aa9a4a6 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -19,7 +19,8 @@ struct flowi;
 /* extention headers */
 extern int                             ipv6_exthdrs_init(void);
 extern void                            ipv6_exthdrs_exit(void);
-extern void                            ipv6_frag_init(void);
+extern int                             ipv6_frag_init(void);
+extern void                            ipv6_frag_exit(void);
 
 /* transport protocols */
 extern void                            rawv6_init(void);
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 442c298..a75c4bc 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -863,7 +863,9 @@ static int __init inet6_init(void)
        if (err)
                goto ipv6_exthdrs_fail;
 
-       ipv6_frag_init();
+       err = ipv6_frag_init();
+       if (err)
+               goto ipv6_frag_fail;
 
        /* Init v6 transport protocols. */
        udpv6_init();
@@ -875,6 +877,8 @@ static int __init inet6_init(void)
 out:
        return err;
 
+ipv6_frag_fail:
+       ipv6_exthdrs_exit();
 ipv6_exthdrs_fail:
        addrconf_cleanup();
 addrconf_fail:
@@ -934,7 +938,7 @@ static void __exit inet6_exit(void)
 
        /* Cleanup code parts. */
        ipv6_packet_cleanup();
-
+       ipv6_frag_exit();
        ipv6_exthdrs_exit();
        addrconf_cleanup();
        ip6_flowlabel_cleanup();
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 76c88a9..bf4173d 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -632,11 +632,13 @@ static struct inet6_protocol frag_protocol =
        .flags          =       INET6_PROTO_NOPOLICY,
 };
 
-void __init ipv6_frag_init(void)
+int __init ipv6_frag_init(void)
 {
-       if (inet6_add_protocol(&frag_protocol, IPPROTO_FRAGMENT) < 0)
-               printk(KERN_ERR "ipv6_frag_init: Could not register 
protocol\n");
+       int ret;
 
+       ret = inet6_add_protocol(&frag_protocol, IPPROTO_FRAGMENT);
+       if (ret)
+               goto out;
        ip6_frags.ctl = &ip6_frags_ctl;
        ip6_frags.hashfn = ip6_hashfn;
        ip6_frags.constructor = ip6_frag_init;
@@ -646,4 +648,12 @@ void __init ipv6_frag_init(void)
        ip6_frags.match = ip6_frag_match;
        ip6_frags.frag_expire = ip6_frag_expire;
        inet_frags_init(&ip6_frags);
+out:
+       return ret;
+}
+
+void ipv6_frag_exit(void)
+{
+       inet_frags_fini(&ip6_frags);
+       inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
 }
-
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