Tue, Aug 15, 2017 at 03:35:21PM CEST, khlebni...@yandex-team.ru wrote:
>Traffic filters could keep direct pointers to classes in classful qdisc,
>thus qdisc destruction first removes all filters before freeing classes.
>Class destruction methods also tries to free attached filters but now
>this isn't safe because tcf_block_put() unlike to tcf_destroy_chain()
>cannot be called second time.
>
>This patch set class->block to NULL after first tcf_block_put() and
>turn second call into no-op.
>
>Signed-off-by: Konstantin Khlebnikov <khlebni...@yandex-team.ru>
>Fixes: 6529eaba33f0 ("net: sched: introduce tcf block infractructure")Acked-by: Jiri Pirko <j...@mellanox.com> Thanks!
