l2tp_tunnel_closeall is only called from l2tp_core.c, and it's easy
to statically analyse the code path calling it to validate that it
should never be passed a NULL tunnel pointer.

Having a BUG_ON checking the tunnel pointer triggers a checkpatch
warning.  Since the BUG_ON is of no value, remove it to avoid the
warning.

Signed-off-by: Tom Parkin <tpar...@katalix.com>
---
 net/l2tp/l2tp_core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index a1ed8baa5aaa..6be3f2e69efd 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1188,8 +1188,6 @@ static void l2tp_tunnel_closeall(struct l2tp_tunnel 
*tunnel)
        struct hlist_node *tmp;
        struct l2tp_session *session;
 
-       BUG_ON(!tunnel);
-
        l2tp_info(tunnel, L2TP_MSG_CONTROL, "%s: closing all sessions...\n",
                  tunnel->name);
 
-- 
2.17.1

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