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tcp_metrics: panic when tcp_metrics_init fails. 

There is not a practical way to cleanup during boot so
just panic if there is a problem initializing tcp_metrics.

That will at least give us a clear place to start debugging
if something does go wrong.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2015-03-13 00:04:51 -05:00 committed by David S. Miller
parent 719a11cdbf
commit 6493517eae
1 changed files with 3 additions and 9 deletions
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12
net/ipv4/tcp_metrics.c
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@ -1175,16 +1175,10 @@ void __init tcp_metrics_init(void)
ret = register_pernet_subsys(&tcp_net_metrics_ops);
if (ret < 0)
goto cleanup;
panic("Could not allocate the tcp_metrics hash table\n");
ret = genl_register_family_with_ops(&tcp_metrics_nl_family,
tcp_metrics_nl_ops);
if (ret < 0)
goto cleanup_subsys;
return;
cleanup_subsys:
unregister_pernet_subsys(&tcp_net_metrics_ops);
cleanup:
return;
panic("Could not register tcp_metrics generic netlink\n");
}