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Date:   Fri, 12 Apr 2019 06:03:27 -0700
From:   Eric Dumazet <>
To:     Wang Hai <>,,,,,,,,,,,,
Subject: Re: [PATCH 2/2] net-sysfs: Fix memory leak in netdev_register_kobject

On 04/12/2019 01:36 PM, Wang Hai wrote:
> When registering struct net_device, it will call
>         register_netdevice ->
>                 netdev_register_kobject ->
>                         device_initialize(dev);
>                         dev_set_name(dev, "%s", ndev->name)
>                         device_add(dev)
>                         register_queue_kobjects(ndev)
> In netdev_register_kobject(), if device_add(dev) or
> register_queue_kobjects(ndev) failed. Register_netdevice()
> will return error, causing netdev_freemem(ndev) to be
> called to free net_device, however put_device(&dev->dev)->..->
> kobject_cleanup() won't be called, resulting in a memory leak
> which is alloced by dev_set_name()

Having two patches with exact same title is rather confusing for bug trackers.

Instead of revert + another_patch, why not just send a cumulative fix ?

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