[B.A.T.M.A.N.] [PATCHv2 next] batman-adv: fix NULL pointer dereferences

[Marek Lindner]

Reported-by: Sven Eckelmann <s...@narfation.org>
Signed-off-by: Marek Lindner <mareklind...@neomailbox.ch>
---

Changes from v1:
- add next branch indication

 multicast.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/multicast.c b/multicast.c
index 8c7ca81..96b66fd 100644
--- a/multicast.c
+++ b/multicast.c
@@ -415,7 +415,7 @@ batadv_mcast_forw_ipv4_node_get(struct batadv_priv 
*bat_priv)
        hlist_for_each_entry_rcu(tmp_orig_node,
                                 &bat_priv->mcast.want_all_ipv4_list,
                                 mcast_want_all_ipv4_node) {
-               if (!atomic_inc_not_zero(&orig_node->refcount))
+               if (!atomic_inc_not_zero(&tmp_orig_node->refcount))
                        continue;
 
                orig_node = tmp_orig_node;
@@ -442,7 +442,7 @@ batadv_mcast_forw_ipv6_node_get(struct batadv_priv 
*bat_priv)
        hlist_for_each_entry_rcu(tmp_orig_node,
                                 &bat_priv->mcast.want_all_ipv6_list,
                                 mcast_want_all_ipv6_node) {
-               if (!atomic_inc_not_zero(&orig_node->refcount))
+               if (!atomic_inc_not_zero(&tmp_orig_node->refcount))
                        continue;
 
                orig_node = tmp_orig_node;
@@ -493,7 +493,7 @@ batadv_mcast_forw_unsnoop_node_get(struct batadv_priv 
*bat_priv)
        hlist_for_each_entry_rcu(tmp_orig_node,
                                 &bat_priv->mcast.want_all_unsnoopables_list,
                                 mcast_want_all_unsnoopables_node) {
-               if (!atomic_inc_not_zero(&orig_node->refcount))
+               if (!atomic_inc_not_zero(&tmp_orig_node->refcount))
                        continue;
 
                orig_node = tmp_orig_node;
-- 
2.0.0.rc0