ematch: Fix early ending of inverted containers.

The result of a negated container has to be inverted before checking for
early ending.

This fixes my previous attempt (17c9c823) to
make inverted containers work correctly.
Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/ematch.c

@@ -526,9 +526,10 @@ int __tcf_em_tree_match(struct sk_buff *skb, struct tcf_ematch_tree *tree,
 		match_idx = stack[--stackp];
 		cur_match = tcf_em_get_match(tree, match_idx);
 
+		if (tcf_em_is_inverted(cur_match))
+			res = !res;
+
 		if (tcf_em_early_end(cur_match, res)) {
-			if (tcf_em_is_inverted(cur_match))
-				res = !res;
 			goto pop_stack;
 		} else {
 			match_idx++;