From e1a5382f978b67b5cc36eec65e6046730ce07714 Mon Sep 17 00:00:00 2001 From: Linus Lüssing Date: Mon, 14 Mar 2011 22:43:37 +0000 Subject: batman-adv: Make orig_node->router an rcu protected pointer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The rcu protected macros rcu_dereference() and rcu_assign_pointer() for the orig_node->router need to be used, as well as spin/rcu locking. Otherwise we might end up using a router pointer pointing to already freed memory. Therefore this commit introduces the safe getter method orig_node_get_router(). Signed-off-by: Linus Lüssing Signed-off-by: Marek Lindner Signed-off-by: Sven Eckelmann --- net/batman-adv/originator.h | 1 + 1 file changed, 1 insertion(+) (limited to 'net/batman-adv/originator.h') diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h index 5cc011057da1..e1d641f27aa9 100644 --- a/net/batman-adv/originator.h +++ b/net/batman-adv/originator.h @@ -34,6 +34,7 @@ struct neigh_node *create_neighbor(struct orig_node *orig_node, uint8_t *neigh, struct hard_iface *if_incoming); void neigh_node_free_ref(struct neigh_node *neigh_node); +struct neigh_node *orig_node_get_router(struct orig_node *orig_node); int orig_seq_print_text(struct seq_file *seq, void *offset); int orig_hash_add_if(struct hard_iface *hard_iface, int max_if_num); int orig_hash_del_if(struct hard_iface *hard_iface, int max_if_num); -- cgit v1.2.3