On Thu, Sep 6, 2018 at 1:51 AM Ding Xiang
<[email protected]> wrote:
>
> put_device will call vme_dev_release to free vdev, kfree is
> unnecessary here.
That does seem to be the case. I think "unnecessary" is overly kind,
it does seem to be a double free.
Looks like the issue was introduced back in 2013 by commit
def1820d25fa ("vme: add missing put_device() after device_register()
fails").
It seems you should *either* kfree() the vdev, _or_ do put_device(),
but doing both seems wrong.
I presume the device_register() has never failed, and this being
vme-only I'm guessing there isn't a vibrant testing community.
Greg?
Linus
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