
< static inline int is_valid_route(struct rtable *rt) {
<     return !IS_ERR(rt) && rt != NULL;
< }
< 
<     if (IS_ERR(rt))
<         goto out;
<     if (rt->rt_uses_gateway && rt->rt_gw_family != AF_INET)
<         goto out;
---
> static inline int is_valid_route(struct rtable *rt) {
>     return !IS_ERR(rt) && rt != NULL;
> }
> 
>     if (!is_valid_route(rt))
>         goto out;
>     if (rt->rt_uses_gateway && rt->rt_gw_family != AF_INET)
>         goto out;
