diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tunnel4.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/net/ipv4/tunnel4.c b/net/ipv4/tunnel4.c index 45cd4253583a..ec35eaa5c029 100644 --- a/net/ipv4/tunnel4.c +++ b/net/ipv4/tunnel4.c @@ -208,24 +208,25 @@ static const struct net_protocol tunnelmpls4_protocol = { static int __init tunnel4_init(void) { if (inet_add_protocol(&tunnel4_protocol, IPPROTO_IPIP)) - goto err_ipip; + goto err; #if IS_ENABLED(CONFIG_IPV6) - if (inet_add_protocol(&tunnel64_protocol, IPPROTO_IPV6)) - goto err_ipv6; + if (inet_add_protocol(&tunnel64_protocol, IPPROTO_IPV6)) { + inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP); + goto err; + } #endif #if IS_ENABLED(CONFIG_MPLS) - if (inet_add_protocol(&tunnelmpls4_protocol, IPPROTO_MPLS)) - goto err_mpls; + if (inet_add_protocol(&tunnelmpls4_protocol, IPPROTO_MPLS)) { + inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP); +#if IS_ENABLED(CONFIG_IPV6) + inet_del_protocol(&tunnel64_protocol, IPPROTO_IPV6); +#endif + goto err; + } #endif return 0; -#if IS_ENABLED(CONFIG_IPV6) -err_mpls: - inet_del_protocol(&tunnel4_protocol, IPPROTO_IPV6); -#endif -err_ipv6: - inet_del_protocol(&tunnel4_protocol, IPPROTO_IPIP); -err_ipip: +err: pr_err("%s: can't add protocol\n", __func__); return -EAGAIN; } |