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net: bridge: add net device refcount tracker

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Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Eric Dumazet 2021-12-06 17:30:29 -08:00 committed by Jakub Kicinski
parent 19c9ebf6ed
commit b2dcdc7f73
2 changed files with 4 additions and 3 deletions
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6
net/bridge/br_if.c
View file

@ -274,7 +274,7 @@ static void destroy_nbp(struct net_bridge_port *p)
p->br = NULL;
p->dev = NULL;
dev_put(dev);
dev_put_track(dev, &p->dev_tracker);
kobject_put(&p->kobj);
}
@ -423,7 +423,7 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br,
return ERR_PTR(-ENOMEM);
p->br = br;
dev_hold(dev);
dev_hold_track(dev, &p->dev_tracker, GFP_KERNEL);
p->dev = dev;
p->path_cost = port_cost(dev);
p->priority = 0x8000 >> BR_PORT_BITS;
@ -434,7 +434,7 @@ static struct net_bridge_port *new_nbp(struct net_bridge *br,
br_stp_port_timer_init(p);
err = br_multicast_add_port(p);
if (err) {
dev_put(dev);
dev_put_track(dev, &p->dev_tracker);
kfree(p);
p = ERR_PTR(err);
}

1
net/bridge/br_private.h
View file

@ -344,6 +344,7 @@ struct net_bridge_mdb_entry {
struct net_bridge_port {
struct net_bridge *br;
struct net_device *dev;
netdevice_tracker dev_tracker;
struct list_head list;
unsigned long flags;