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| author | Ingo Molnar <mingo@kernel.org> | 2014-06-06 07:55:06 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-06-06 07:55:06 +0200 |
| commit | ec00010972a0971b2c1da4fbe4e5c7d8ed1ecb05 (patch) | |
| tree | c28975d7daf6d8a3aa23afe8f42837b71105b269 /net/ipv6/xfrm6_protocol.c | |
| parent | 8c6e549a447c51f4f8c0ba7f1e444469f75a354a (diff) | |
| parent | e041e328c4b41e1db79bfe5ba9992c2ed771ad19 (diff) | |
| download | linux-ec00010972a0971b2c1da4fbe4e5c7d8ed1ecb05.tar.gz | |
Merge branch 'perf/urgent' into perf/core, to resolve conflict and to prepare for new patches
Conflicts:
arch/x86/kernel/traps.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'net/ipv6/xfrm6_protocol.c')
| -rw-r--r-- | net/ipv6/xfrm6_protocol.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/net/ipv6/xfrm6_protocol.c b/net/ipv6/xfrm6_protocol.c index 6ab989c486f7..54d13f8dbbae 100644 --- a/net/ipv6/xfrm6_protocol.c +++ b/net/ipv6/xfrm6_protocol.c @@ -50,6 +50,10 @@ int xfrm6_rcv_cb(struct sk_buff *skb, u8 protocol, int err) { int ret; struct xfrm6_protocol *handler; + struct xfrm6_protocol __rcu **head = proto_handlers(protocol); + + if (!head) + return 0; for_each_protocol_rcu(*proto_handlers(protocol), handler) if ((ret = handler->cb_handler(skb, err)) <= 0) @@ -184,10 +188,12 @@ int xfrm6_protocol_register(struct xfrm6_protocol *handler, struct xfrm6_protocol __rcu **pprev; struct xfrm6_protocol *t; bool add_netproto = false; - int ret = -EEXIST; int priority = handler->priority; + if (!proto_handlers(protocol) || !netproto(protocol)) + return -EINVAL; + mutex_lock(&xfrm6_protocol_mutex); if (!rcu_dereference_protected(*proto_handlers(protocol), @@ -230,6 +236,9 @@ int xfrm6_protocol_deregister(struct xfrm6_protocol *handler, struct xfrm6_protocol *t; int ret = -ENOENT; + if (!proto_handlers(protocol) || !netproto(protocol)) + return -EINVAL; + mutex_lock(&xfrm6_protocol_mutex); for (pprev = proto_handlers(protocol); |