[PATCH 2/8] [PATCH] use EOPNOTSUPP instead of EINVAL if the conntrack has no helper

[Pablo Neira Ayuso <pablo@netfilter.org>]

This patch changes the return value if the conntrack has no helper assigned.
Instead of EINVAL, which is reserved for malformed messages, it returns
EOPNOTSUPP.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

 net/netfilter/nf_conntrack_netlink.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 80a3f13..d87a939 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -1652,7 +1652,7 @@ ctnetlink_create_expect(struct nlattr *cda[], u_int8_t u3)
 
 	if (!help || !help->helper) {
 		/* such conntrack hasn't got any helper, abort */
-		err = -EINVAL;
+		err = -EOPNOTSUPP;
 		goto out;
 	}