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Date:   Sun, 28 Apr 2019 22:49:42 +0800
From:   Muchun Song <>
Cc:     Benjamin Herrenschmidt <>,
        linux-kernel <>,
Subject: Re: [PATCH] driver core: Fix use-after-free and double free on glue directory

Hi Greg and Rafael:

Benjamin Herrenschmidt <> 于2019年4月28日周日 下午6:10写道:
> The basic idea yes, the whole bool *locked is horrid though. Wouldn't it
> work to have a get_device_parent_locked that always returns with the mutex held,
> or just move the mutex to the caller or something simpler like this ?

Greg and Rafael, do you have any suggestions for this? Or you also
agree with Ben?


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