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dummy: Add ndo_uninit().

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In register_netdevice(), when ndo_init() is successful and later
some error occurred, ndo_uninit() will be called.
So dummy deivce is desirable to implement ndo_uninit() method
to free percpu stats for this case.
And, ndo_uninit() is also called along with dev->destructor() when
device is unregistered, so in order to prevent dev->dstats from
being freed twice, dev->destructor is modified to free_netdev().

Signed-off-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hiroaki SHIMODA 2012-04-15 13:26:01 +00:00 committed by David S. Miller
parent a99ff7d012
commit 890fdf2a0c
1 changed files with 3 additions and 3 deletions
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6
drivers/net/dummy.c
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@ -107,14 +107,14 @@ static int dummy_dev_init(struct net_device *dev)
return 0;
}
static void dummy_dev_free(struct net_device *dev)
static void dummy_dev_uninit(struct net_device *dev)
{
free_percpu(dev->dstats);
free_netdev(dev);
}
static const struct net_device_ops dummy_netdev_ops = {
.ndo_init = dummy_dev_init,
.ndo_uninit = dummy_dev_uninit,
.ndo_start_xmit = dummy_xmit,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_rx_mode = set_multicast_list,
@ -128,7 +128,7 @@ static void dummy_setup(struct net_device *dev)
/* Initialize the device structure. */
dev->netdev_ops = &dummy_netdev_ops;
dev->destructor = dummy_dev_free;
dev->destructor = free_netdev;
/* Fill in device structure with ethernet-generic values. */
dev->tx_queue_len = 0;