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authorEric Dumazet <edumazet@google.com>2021-12-07 04:30:29 +0300
committerJakub Kicinski <kuba@kernel.org>2021-12-08 07:44:58 +0300
commitb2dcdc7f731dfd8957ee2ca8be6c5d83bd0d95e3 (patch)
tree6181365e97637e8cfabc6137d3754cfc41f5d7e4 /net/bridge
parent19c9ebf6ed70856385296a65e78c1699081b152f (diff)
downloadlinux-b2dcdc7f731dfd8957ee2ca8be6c5d83bd0d95e3.tar.xz
net: bridge: add net device refcount tracker
Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_if.c6
-rw-r--r--net/bridge/br_private.h1
2 files changed, 4 insertions, 3 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 3915832a03c2..a52ad81596b7 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -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);
}
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index c0efd697865a..af2b3512d86c 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -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;