linux-kernel - Re: [PATCH] spi: sprd: call pm_runtime_put if pm_runtime_get

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Date:   Tue, 2 Jun 2020 11:05:07 +0200
From:   Markus Elfring <Markus.Elfring@....de>
To:     Navid Emamdoost <navid.emamdoost@...il.com>,
        linux-spi@...r.kernel.org
Cc:     Navid Emamdoost <emamd001@....edu>, Kangjie Lu <kjlu@....edu>,
        Stephen McCamant <smccaman@....edu>,
        Qiushi Wu <wu000273@....edu>,
        Baolin Wang <baolin.wang7@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Orson Zhai <orsonzhai@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Dinghao Liu <dinghao.liu@....edu.cn>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] spi: sprd: call pm_runtime_put if pm_runtime_get_sync
 fails

> Call to pm_runtime_get_sync increments counter even in case of
> failure leading to incorrect ref count.
> Call pm_runtime_put_noidle if pm_runtime_get_sync fails.

How do you think about a wording variant like the following?

   Change description:
   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_noidle” also in one error case
   to keep the reference counting consistent.


Would you like to add the tag “Fixes” to the commit message?

Regards,
Markus