net/core/neighbour: fix kmemleak minimal reference count for hash tables

[ Upstream commit 01b833ab44c9e484060aad72267fc7e71beb559b ]

This should be 1 for normal allocations, 0 disables leak reporting.
Signed-off-by: NKonstantin Khlebnikov <khlebnikov@yandex-team.ru>
Reported-by: NCong Wang <xiyou.wangcong@gmail.com>
Fixes: 85704cb8dcfd ("net/core/neighbour: tell kmemleak about hash tables")
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

net/core/neighbour.c

@@ -370,7 +370,7 @@ static struct neigh_hash_table *neigh_hash_alloc(unsigned int shift)
 		buckets = (struct neighbour __rcu **)
 			  __get_free_pages(GFP_ATOMIC | __GFP_ZERO,
 					   get_order(size));
-		kmemleak_alloc(buckets, size, 0, GFP_ATOMIC);
+		kmemleak_alloc(buckets, size, 1, GFP_ATOMIC);
 	}
 	if (!buckets) {
 		kfree(ret);