From: Sven Eckelmann Date: Tue, 5 Jan 2016 11:06:26 +0000 (+0100) Subject: batman-adv: Drop reference to netdevice on last reference X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=140ed8e87ca8f4875c2b146cdb2cdbf0c9ac6080;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git batman-adv: Drop reference to netdevice on last reference The references to the network device should be dropped inside the release function for batadv_hard_iface similar to what is done with the batman-adv internal datastructures. Signed-off-by: Sven Eckelmann Signed-off-by: Marek Lindner Signed-off-by: Antonio Quartulli --- diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c index db90022c00a4..b17e272b5cb3 100644 --- a/net/batman-adv/hard-interface.c +++ b/net/batman-adv/hard-interface.c @@ -47,13 +47,16 @@ #include "sysfs.h" #include "translation-table.h" -void batadv_hardif_free_rcu(struct rcu_head *rcu) +/** + * batadv_hardif_release - release hard interface from lists and queue for + * free after rcu grace period + * @hard_iface: the hard interface to free + */ +void batadv_hardif_release(struct batadv_hard_iface *hard_iface) { - struct batadv_hard_iface *hard_iface; - - hard_iface = container_of(rcu, struct batadv_hard_iface, rcu); dev_put(hard_iface->net_dev); - kfree(hard_iface); + + kfree_rcu(hard_iface, rcu); } struct batadv_hard_iface * diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h index 4d6b5e12331f..9eb08ad6032d 100644 --- a/net/batman-adv/hard-interface.h +++ b/net/batman-adv/hard-interface.h @@ -61,18 +61,18 @@ void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface, void batadv_hardif_remove_interfaces(void); int batadv_hardif_min_mtu(struct net_device *soft_iface); void batadv_update_min_mtu(struct net_device *soft_iface); -void batadv_hardif_free_rcu(struct rcu_head *rcu); +void batadv_hardif_release(struct batadv_hard_iface *hard_iface); /** * batadv_hardif_free_ref - decrement the hard interface refcounter and - * possibly free it + * possibly release it * @hard_iface: the hard interface to free */ static inline void batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface) { if (atomic_dec_and_test(&hard_iface->refcount)) - call_rcu(&hard_iface->rcu, batadv_hardif_free_rcu); + batadv_hardif_release(hard_iface); } static inline struct batadv_hard_iface *