diff options
| -rw-r--r-- | drivers/staging/batman-adv/hard-interface.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/staging/batman-adv/hard-interface.c b/drivers/staging/batman-adv/hard-interface.c index b68a7e5173be..d85de82f941a 100644 --- a/drivers/staging/batman-adv/hard-interface.c +++ b/drivers/staging/batman-adv/hard-interface.c @@ -463,9 +463,6 @@ static void hardif_remove_interface(struct batman_if *batman_if) return; batman_if->if_status = IF_TO_BE_REMOVED; - - /* caller must take if_list_lock */ - list_del_rcu(&batman_if->list); synchronize_rcu(); sysfs_del_hardif(&batman_if->hardif_obj); hardif_put(batman_if); @@ -474,13 +471,21 @@ static void hardif_remove_interface(struct batman_if *batman_if) void hardif_remove_interfaces(void) { struct batman_if *batman_if, *batman_if_tmp; + struct list_head if_queue; + + INIT_LIST_HEAD(&if_queue); - rtnl_lock(); spin_lock(&if_list_lock); list_for_each_entry_safe(batman_if, batman_if_tmp, &if_list, list) { - hardif_remove_interface(batman_if); + list_del_rcu(&batman_if->list); + list_add_tail(&batman_if->list, &if_queue); } spin_unlock(&if_list_lock); + + rtnl_lock(); + list_for_each_entry_safe(batman_if, batman_if_tmp, &if_queue, list) { + hardif_remove_interface(batman_if); + } rtnl_unlock(); } @@ -507,8 +512,10 @@ static int hard_if_event(struct notifier_block *this, break; case NETDEV_UNREGISTER: spin_lock(&if_list_lock); - hardif_remove_interface(batman_if); + list_del_rcu(&batman_if->list); spin_unlock(&if_list_lock); + + hardif_remove_interface(batman_if); break; case NETDEV_CHANGEMTU: if (batman_if->soft_iface) |