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| author |   Gao Feng <fgao@ikuai8.com> | 2016-09-09 23:25:09 +0800 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2016-09-12 19:54:43 +0200 |
| commit | 4e6577de71803142d01e374cf15664af0388799a (patch) | |
| tree | 31cc9b67b0efe071ad9ea072e83dd2fc74c07a3d /net/netfilter/nfnetlink_queue.c | |
| parent | netfilter: nf_conntrack: simplify __nf_ct_try_assign_helper() return logic (diff) | |
| download | linux-dev-4e6577de71803142d01e374cf15664af0388799a.tar.xz linux-dev-4e6577de71803142d01e374cf15664af0388799a.zip | |
netfilter: Add the missed return value check of register_netdevice_notifier
There are some codes of netfilter module which did not check the return
value of register_netdevice_notifier. Add the checks now.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nfnetlink_queue.c')
| -rw-r--r-- | net/netfilter/nfnetlink_queue.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c index f49f45081acb..808da34f94cd 100644 --- a/net/netfilter/nfnetlink_queue.c +++ b/net/netfilter/nfnetlink_queue.c @@ -1522,9 +1522,16 @@ static int __init nfnetlink_queue_init(void) goto cleanup_netlink_notifier; } - register_netdevice_notifier(&nfqnl_dev_notifier); + status = register_netdevice_notifier(&nfqnl_dev_notifier); + if (status < 0) { + pr_err("nf_queue: failed to register netdevice notifier\n"); + goto cleanup_netlink_subsys; + } + return status; +cleanup_netlink_subsys: + nfnetlink_subsys_unregister(&nfqnl_subsys); cleanup_netlink_notifier: netlink_unregister_notifier(&nfqnl_rtnl_notifier); unregister_pernet_subsys(&nfnl_queue_net_ops); |