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ipv6: In fragmentation code, handle error returned from register_pernet_subsys.
The error code is ignored now, but ipv6 is a module and one can be loaded under memory pressure, so the error may occur (in theory). Besides, I'm going to handle error returned from registering a read-only part of the table, so ignoring this one, while handing the other one would look strange. (However, this possibility of error is rather small, so I'm not sure whether this is a candidate for current net tree). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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0a64b4b811
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0002c630c4
@ -750,7 +750,9 @@ int __init ipv6_frag_init(void)
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if (ret)
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goto out;
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register_pernet_subsys(&ip6_frags_ops);
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ret = register_pernet_subsys(&ip6_frags_ops);
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if (ret)
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goto err_pernet;
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ip6_frags.hashfn = ip6_hashfn;
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ip6_frags.constructor = ip6_frag_init;
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@ -763,6 +765,10 @@ int __init ipv6_frag_init(void)
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inet_frags_init(&ip6_frags);
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out:
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return ret;
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err_pernet:
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inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
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goto out;
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}
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void ipv6_frag_exit(void)
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