tipc: use standard write_lock & unlock functions when creating node

In the function tipc_node_create() we protect the peer capability field
by using the node rw_lock. However, we access the lock directly instead
of using the dedicated functions for this, as we do everywhere else in
node.c. This cosmetic spot is fixed here.

Fixes: 40999f11ce67 ("tipc: make link capability update thread safe")
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/net/tipc/node.c b/net/tipc/node.c
index 3469b5d4ed32..7478e2d4ec02 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -375,14 +375,15 @@ static struct tipc_node *tipc_node_create(struct net *net, u32 addr,
                 if (n->capabilities == capabilities)
                         goto exit;
                 /* Same node may come back with new capabilities */
-                write_lock_bh(&n->lock);
+                tipc_node_write_lock(n);
                 n->capabilities = capabilities;
                 for (bearer_id = 0; bearer_id < MAX_BEARERS; bearer_id++) {
                         l = n->links[bearer_id].link;
                         if (l)
                                 tipc_link_update_caps(l, capabilities);
                 }
-                write_unlock_bh(&n->lock);
+                tipc_node_write_unlock_fast(n);
+
                 /* Calculate cluster capabilities */
                 tn->capabilities = TIPC_NODE_CAPABILITIES;
                 list_for_each_entry_rcu(temp_node, &tn->node_list, list) {