netfilter: nf_tables: Eliminate duplicated code in nf_tables_table_enable()

If something fails in nf_tables_table_enable(), it unregisters the
chains. But the rollback code is the same as nf_tables_table_disable()
almostly, except there is one counter check.  Now create one wrapper
function to eliminate the duplicated codes.

Signed-off-by: Feng <fgao@ikuai8.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

path: root/net/ieee802154/nl802154.h

#ifndef __IEEE802154_NL802154_H
#define __IEEE802154_NL802154_H

int nl802154_init(void);
void nl802154_exit(void);

#endif /* __IEEE802154_NL802154_H */