There are only two sites where cl_parent is assigned in the kernel tree, and it's assigned to 'clnt', so the only time this BUG_ON will fire is when there is memory corruption or use-after-free (less likely).
There are only two sites where cl_parent is assigned in the kernel tree, and it's assigned to 'clnt', so the only time this BUG_ON will fire is when there is memory corruption or use-after-free (less likely).