[NETLABEL]: Fix lookup logic of netlbl_domhsh_search_def.

Currently, if the call to netlbl_domhsh_search succeeds the
return result will still be NULL.

Fix that, by returning the found entry (if any).
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Acked-by: NPaul Moore <paul.moore@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/netlabel/netlabel_domainhash.c

@@ -150,11 +150,11 @@ static struct netlbl_dom_map *netlbl_domhsh_search_def(const char *domain)
 	entry = netlbl_domhsh_search(domain);
 	if (entry == NULL) {
 		entry = rcu_dereference(netlbl_domhsh_def);
-		if (entry != NULL && entry->valid)
-			return entry;
+		if (entry != NULL && !entry->valid)
+			entry = NULL;
 	}
 
-	return NULL;
+	return entry;
 }
 
 /*