On 2014/5/8 19:26, Wang Weidong wrote:
> On 2014/5/8 19:11, Neil Horman wrote:
>> On Thu, May 08, 2014 at 03:55:05PM +0800, Wang Weidong wrote:
>>> When register_net_sysctl failed, we should free the
>>> sysctl_table while the net_namespace is not init_net.
>>>
>>> Signed-off-by: Wang Weidong <wangweidong1@xxxxxxxxxx>
>>> ---
>>> net/sctp/sysctl.c | 5 +++++
>>> 1 file changed, 5 insertions(+)
>>>
>>> diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
>>> index 844d2b0..4c17694 100644
>>> --- a/net/sctp/sysctl.c
>>> +++ b/net/sctp/sysctl.c
>>> @@ -450,6 +450,11 @@ int sctp_sysctl_net_register(struct net *net)
>>> }
>>>
>>> net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", table);
>>> + if (net->sctp.sysctl_header == NULL) {
>>> + if (!net_eq(net, &init_net))
>>> + kfree(table);
>>> + return -ENOMEM;
>>> + }
>> Sorry, we're not special casing this in 3 places. Why not just revert the
>> origonal commit so that all the sysctl tables can be handled the same way
>> Neil
>>
> Hi Neil,
>
> The original commit avoids to kmemdup
>
Hi Neil,
Sorry for the accomplished mail.
Although, revert the original commit, the checking for net->sctp.sysctl_header
is need from coding view.
What do you think?
Regards
Wang
>>> return 0;
>>> }
>>>
>>> --
>>> 1.7.12
>>>
>>>
>>>
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