Commit 66ce07f7 authored by Eric Dumazet's avatar Eric Dumazet Committed by Jakub Kicinski
Browse files

ax25: add net device refcount tracker 



Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent e44b14eb

include/net/ax25.h

+3 −0
Original line number Diff line number Diff line
@@ -229,7 +229,10 @@ struct ctl_table; 


typedef struct ax25_dev {

	struct ax25_dev		*next;



	struct net_device	*dev;

	netdevice_tracker	dev_tracker;



	struct net_device	*forward;

	struct ctl_table_header *sysheader;

	int			values[AX25_MAX_VALUES];

net/ax25/ax25_dev.c

+4 −4
Original line number Diff line number Diff line
@@ -58,7 +58,7 @@ void ax25_dev_device_up(struct net_device *dev) 


	dev->ax25_ptr     = ax25_dev;

	ax25_dev->dev     = dev;

	dev_hold(dev);

	dev_hold_track(dev, &ax25_dev->dev_tracker, GFP_ATOMIC);

	ax25_dev->forward = NULL;



	ax25_dev->values[AX25_VALUES_IPDEFMODE] = AX25_DEF_IPDEFMODE;
@@ -114,7 +114,7 @@ void ax25_dev_device_down(struct net_device *dev) 
		ax25_dev_list = s->next;

		spin_unlock_bh(&ax25_dev_lock);

		dev->ax25_ptr = NULL;

		dev_put(dev);

		dev_put_track(dev, &ax25_dev->dev_tracker);

		kfree(ax25_dev);

		return;

	}
@@ -124,7 +124,7 @@ void ax25_dev_device_down(struct net_device *dev) 
			s->next = ax25_dev->next;

			spin_unlock_bh(&ax25_dev_lock);

			dev->ax25_ptr = NULL;

			dev_put(dev);

			dev_put_track(dev, &ax25_dev->dev_tracker);

			kfree(ax25_dev);

			return;

		}
@@ -188,7 +188,7 @@ void __exit ax25_dev_free(void) 
	ax25_dev = ax25_dev_list;

	while (ax25_dev != NULL) {

		s        = ax25_dev;

		dev_put(ax25_dev->dev);

		dev_put_track(ax25_dev->dev, &ax25_dev->dev_tracker);

		ax25_dev = ax25_dev->next;

		kfree(s);

	}