[PATCH][RFC] check fib6_lookup_1 return in fib6_lookup_1

[Arnaldo Carvalho de Melo]

Hi,

        fib6_lookup_1 can return NULL, please consider applying.

                        - Arnaldo

--- linux-2.4.0-test8/net/ipv6/ip6_fib.c        Wed May  3 05:48:04 2000
+++ linux-2.4.0-test8.acme/net/ipv6/ip6_fib.c   Mon Sep 11 18:28:48 2000
@@ -638,6 +638,9 @@
                        if (narg->addr) {
                                st = fib6_lookup_1(fn->subtree, narg);
 
+                               if (!st)
+                                       return NULL;
+
                                if (!(st->fn_flags & RTN_ROOT))
                                {
                                        return st;
-
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