Commit 14ed029b authored by Eric Dumazet's avatar Eric Dumazet Committed by Jakub Kicinski
Browse files

net: add net device refcount tracker to dev_ifsioc() 



Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 5ae21950

net/core/dev_ioctl.c

+3 −2
Original line number Diff line number Diff line
@@ -313,6 +313,7 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data, 
	int err;

	struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);

	const struct net_device_ops *ops;

	netdevice_tracker dev_tracker;



	if (!dev)

		return -ENODEV;
@@ -381,10 +382,10 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data, 
			return -ENODEV;

		if (!netif_is_bridge_master(dev))

			return -EOPNOTSUPP;

		dev_hold(dev);

		dev_hold_track(dev, &dev_tracker, GFP_KERNEL);

		rtnl_unlock();

		err = br_ioctl_call(net, netdev_priv(dev), cmd, ifr, NULL);

		dev_put(dev);

		dev_put_track(dev, &dev_tracker);

		rtnl_lock();

		return err;