linux-kernel - Re: [PATCH] dmaengine: stm32-mdma: call pm_runtime_put if pm_runtime_get

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Message-ID: <CAEkB2ET_gfNUAuoZHxiGWZX7d3CQaJYJJqS2Fspif5mFq4-xfA@mail.gmail.com>
Date:   Wed, 3 Jun 2020 14:17:08 -0500
From:   Navid Emamdoost <navid.emamdoost@...il.com>
To:     Markus Elfring <Markus.Elfring@....de>
Cc:     dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com,
        Alexandre Torgue <alexandre.torgue@...com>,
        Dan Williams <dan.j.williams@...el.com>,
        Navid Emamdoost <emamd001@....edu>, Kangjie Lu <kjlu@....edu>,
        Stephen McCamant <smccaman@....edu>,
        Qiushi Wu <wu000273@....edu>, Vinod Koul <vkoul@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] dmaengine: stm32-mdma: call pm_runtime_put if
 pm_runtime_get_sync fails

On Wed, Jun 3, 2020 at 1:52 PM Markus Elfring <Markus.Elfring@....de> wrote:
>
> > Calling pm_runtime_get_sync increments the counter even in case of
> > failure, causing incorrect ref count. Call pm_runtime_put if
> > pm_runtime_get_sync fails.
>
> Is it appropriate to copy a sentence from the change description
> into the patch subject?
>
> How do you think about a wording variant like the following?
Please stop proposing rewording on my patches!

I will consider updating my patches only if a maintainer asks for it.

>
>    The PM runtime reference counter is generally incremented by a call of
>    the function “pm_runtime_get_sync”.
>    Thus call the function “pm_runtime_put” also in two error cases
>    to keep the reference counting consistent.
>
>
> Would you like to add the tag “Fixes” to the commit message?
>
> Regards,
> Markus



-- 
Navid.