[IPV6]: Clean up BACKTRACK().

The fn check is unnecessary as fn can never be NULL in BACKTRACK().

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index a1b0f075462e..263c057d17c6 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -484,7 +484,7 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 do { \
         if (rt == &ip6_null_entry) { \
                 struct fib6_node *pn; \
-                while (fn) { \
+                while (1) { \
                         if (fn->fn_flags & RTN_TL_ROOT) \
                                 goto out; \
                         pn = fn->parent; \