1 files changed, 6 insertions, 1 deletions

diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 1361997cf205..9aa426e42123 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -977,7 +977,7 @@ static int o2net_tx_can_proceed(struct o2net_node *nn,
 int o2net_send_message_vec(u32 msg_type, u32 key, struct kvec *caller_vec,
                            size_t caller_veclen, u8 target_node, int *status)
 {
-        int ret;
+        int ret = 0;
         struct o2net_msg *msg = NULL;
         size_t veclen, caller_bytes = 0;
         struct kvec *vec = NULL;
@@ -1696,6 +1696,9 @@ static void o2net_hb_node_down_cb(struct o2nm_node *node, int node_num,
 {
         o2quo_hb_down(node_num);
 
+        if (!node)
+                return;
+
         if (node_num != o2nm_this_node())
                 o2net_disconnect_node(node);
 
@@ -1709,6 +1712,8 @@ static void o2net_hb_node_up_cb(struct o2nm_node *node, int node_num,
 
         o2quo_hb_up(node_num);
 
+        BUG_ON(!node);
+
         /* ensure an immediate connect attempt */
         nn->nn_last_connect_attempt = jiffies -
                 (msecs_to_jiffies(o2net_reconnect_delay()) + 1);