l2tp: purge session reorder queue on delete

Add calls to l2tp_session_queue_purge as a part of l2tp_tunnel_closeall
and l2tp_session_delete.  Pseudowire implementations which are deleted only
via. l2tp_core l2tp_session_delete calls can dispense with their own code for
flushing the reorder queue.

Signed-off-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index 69c316dd02dc..c00f31b8cc04 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1373,6 +1373,8 @@ again:
                                 synchronize_rcu();
                         }
 
+                        l2tp_session_queue_purge(session);
+
                         if (session->session_close != NULL)
                                 (*session->session_close)(session);
 
@@ -1813,6 +1815,8 @@ EXPORT_SYMBOL_GPL(l2tp_session_free);
  */
 int l2tp_session_delete(struct l2tp_session *session)
 {
+        l2tp_session_queue_purge(session);
+
         if (session->session_close != NULL)
                 (*session->session_close)(session);