static int __init vlan_proto_init(void) { int err; pr_info("%s v%s\n", vlan_fullname, vlan_version); err = register_pernet_subsys(&vlan_net_ops); if (err < 0) goto err0; err = register_netdevice_notifier(&vlan_notifier_block); if (err < 0) goto err2; err = vlan_gvrp_init(); if (err < 0) goto err3; err = vlan_netlink_init(); if (err < 0) goto err4; vlan_ioctl_set(vlan_ioctl_handler); return 0; err4: vlan_gvrp_uninit(); err3: unregister_netdevice_notifier(&vlan_notifier_block); err2: unregister_pernet_subsys(&vlan_net_ops); err0: return err; }
/* * Function vlan_proto_init (pro) * * Initialize VLAN protocol layer, * */ static int __init vlan_proto_init(void) { int err; printk(VLAN_INF "%s v%s\n", vlan_fullname, vlan_version); /* proc file system initialization */ err = vlan_proc_init(); if (err < 0) { printk(KERN_ERR "%s: can't create entry in proc filesystem!\n", __FUNCTION__); return err; } dev_add_pack(&vlan_packet_type); /* Register us to receive netdevice events */ err = register_netdevice_notifier(&vlan_notifier_block); if (err < 0) { dev_remove_pack(&vlan_packet_type); vlan_proc_cleanup(); return err; } vlan_ioctl_set(vlan_ioctl_handler); return 0; }
static void __exit vlan_cleanup_module(void) { vlan_ioctl_set(NULL); vlan_netlink_fini(); unregister_netdevice_notifier(&vlan_notifier_block); unregister_pernet_subsys(&vlan_net_ops); rcu_barrier(); /* Wait for completion of call_rcu()'s */ vlan_gvrp_uninit(); }
/* * Module 'remove' entry point. * o delete /proc/net/router directory and static entries. */ static void __exit vlan_cleanup_module(void) { int i; vlan_ioctl_set(NULL); /* Un-register us from receiving netdevice events */ unregister_netdevice_notifier(&vlan_notifier_block); dev_remove_pack(&vlan_packet_type); vlan_cleanup_devices(); /* This table must be empty if there are no module * references left. */ for (i = 0; i < VLAN_GRP_HASH_SIZE; i++) { BUG_ON(!hlist_empty(&vlan_group_hash[i])); } vlan_proc_cleanup(); synchronize_net(); }
static int __init vlan_proto_init(void) { int err; pr_info("%s v%s %s\n", vlan_fullname, vlan_version, vlan_copyright); pr_info("All bugs added by %s\n", vlan_buggyright); err = register_pernet_subsys(&vlan_net_ops); if (err < 0) goto err0; err = register_netdevice_notifier(&vlan_notifier_block); if (err < 0) goto err2; err = vlan_gvrp_init(); if (err < 0) goto err3; err = vlan_netlink_init(); if (err < 0) goto err4; dev_add_pack(&vlan_packet_type); vlan_ioctl_set(vlan_ioctl_handler); return 0; err4: vlan_gvrp_uninit(); err3: unregister_netdevice_notifier(&vlan_notifier_block); err2: unregister_pernet_subsys(&vlan_net_ops); err0: return err; }