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ipv6: In fragmentation code, handle error returned from register_pernet_subsys.

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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>
This commit is contained in:
Pavel Emelyanov 2008-05-19 13:52:28 -07:00 committed by David S. Miller
parent 0a64b4b811
commit 0002c630c4
1 changed files with 7 additions and 1 deletions
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8
net/ipv6/reassembly.c
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@ -750,7 +750,9 @@ int __init ipv6_frag_init(void)
if (ret)
goto out;
register_pernet_subsys(&ip6_frags_ops);
ret = register_pernet_subsys(&ip6_frags_ops);
if (ret)
goto err_pernet;
ip6_frags.hashfn = ip6_hashfn;
ip6_frags.constructor = ip6_frag_init;
@ -763,6 +765,10 @@ int __init ipv6_frag_init(void)
inet_frags_init(&ip6_frags);
out:
return ret;
err_pernet:
inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
goto out;
}
void ipv6_frag_exit(void)