linux-kernel - Re: [v4] coccinelle: semantic patch for missing put

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Message-ID: <8041ca90-5328-19ea-633e-e0b591c5723f@web.de>
Date:   Fri, 15 Feb 2019 09:19:54 +0100
From:   Markus Elfring <Markus.Elfring@....de>
To:     Julia Lawall <julia.lawall@...6.fr>
Cc:     Wen Yang <wen.yang99@....com.cn>,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Michal Marek <michal.lkml@...kovi.net>,
        Yi Wang <wang.yi59@....com.cn>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Wen Yang <yellowriver2010@...mail.com>,
        Cheng Shengyu <cheng.shengyu@....com.cn>,
        cocci@...teme.lip6.fr, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [v4] coccinelle: semantic patch for missing put_device()

> The whole goal of the semantic patch is to ensure that put_device is
> called when needed.

Thanks for this clarification.

The software development goal seems to be clear to some degree.


> If the value is stored in a structure,

Will any further means become relevant for the discussed data processing?


> then someone else will likely take care of calling put_device later
> when the structure is destroyed.

Such a view is reasonable.

Are there any additional source code analysis and software development challenges
to consider for safer resource management?

Regards,
Markus