netfilter: nf_tables: bogus EBUSY in helper removal from transaction

netfilter: nf_tables: bogus EBUSY in helper removal from transaction

commit 8ffcd32f64633926163cdd07a7d295c500a947d1 upstream.

Proper use counter updates when activating and deactivating the object,
otherwise, this hits bogus EBUSY error.

Fixes: cd5125d8f518 ("netfilter: nf_tables: split set destruction in deactivate and destroy phase")
Reported-by: Laura Garcia <nevola@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>