Messages in this thread Patch in this message | | | Date | Wed, 09 May 2012 06:51:51 +0100 | From | Ben Hutchings <> | Subject | [ 082/167] [PATCH] dummy: Add ndo_uninit(). |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com>
commit 890fdf2a0cb88202d1427589db2cf29c1bdd3c1d upstream.
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> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/net/dummy.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c index d5c6d92..442d91a 100644 --- a/drivers/net/dummy.c +++ b/drivers/net/dummy.c @@ -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; -- 1.7.10
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