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Date:   Fri, 29 Apr 2022 11:17:19 +0800 (GMT+08:00)
From:   "Lin Ma" <>
To:     "Greg KH" <>
Cc:     "Duoming Zhou" <>,,,,,,,,,
        "Jakub Kicinski" <>
Subject: Re: Re: [PATCH net v4] nfc: ... device_is_registered() is data

Hello there,

> That is what proper reference counting is supposed to be for.  Perhaps
> you are running into a driver subsystem that is not doing that well, or
> at all?
> Try adding the needed references and the use-after-free should almost be
> impossible to happen.

That's true, if all the relevant resources are managed properly by the reference
count, everything will be easier.

> thanks,
> greg k-h

Lin Ma

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