netfilter: nftables: report EOPNOTSUPP on unsupported flowtable flags

Error was not set accordingly.

Fixes: 8bb69f3b2918 ("netfilter: nf_tables: add flowtable offload control plane")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 224c8e537cb3357200da964ac29e336cf10798a4..0d034f895b7bc908c9229ed8140c63ec0a160547 100644 (file)
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -6963,8 +6963,10 @@ static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
        if (nla[NFTA_FLOWTABLE_FLAGS]) {
                flowtable->data.flags =
                        ntohl(nla_get_be32(nla[NFTA_FLOWTABLE_FLAGS]));
-               if (flowtable->data.flags & ~NFT_FLOWTABLE_MASK)
+               if (flowtable->data.flags & ~NFT_FLOWTABLE_MASK) {
+                       err = -EOPNOTSUPP;
                        goto err3;
+               }
        }
 
        write_pnet(&flowtable->data.net, net);