net: fib_rules: fix error code for unsupported families

The errno code returned must be negative.

Fixes "RTNETLINK answers: Unknown error 18446744073709551519".

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index e3e9ab0f74e33caf9e0df3a8d0829359f86eefe7..277a2302eb3abb666574a5b3b7dc2714f45ef7c4 100644 (file)
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -226,7 +226,7 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
        ops = lookup_rules_ops(net, frh->family);
        if (ops == NULL) {
-               err = EAFNOSUPPORT;
+               err = -EAFNOSUPPORT;
                goto errout;
        }
 
@@ -365,7 +365,7 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
 
        ops = lookup_rules_ops(net, frh->family);
        if (ops == NULL) {
-               err = EAFNOSUPPORT;
+               err = -EAFNOSUPPORT;
                goto errout;
        }