linux-kernel - Re: [PATCH] i2c: ensure timely release of driver-allocated resources

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Message-ID: <20210410200115.GB2471@kunai>
Date:   Sat, 10 Apr 2021 22:01:15 +0200
From:   Wolfram Sang <wsa@...nel.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Jeff LaBundy <jeff@...undy.com>, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: ensure timely release of driver-allocated resources

On Sun, Mar 21, 2021 at 06:38:32PM -0700, Dmitry Torokhov wrote:
> More and more drivers rely on devres to manage their resources, however
> if bus' probe() and release() methods are not trivial and control some
> of resources as well (for example enable or disable clocks, or attach
> device to a power domain), we need to make sure that driver-allocated
> resources are released immediately after driver's remove() method
> returns, and not postponed until driver core gets around to releasing
> resources. To fix that we open a new devres group before calling
> driver's probe() and explicitly release it when we return from driver's
> remove().
> 
> Tested-by: Jeff LaBundy <jeff@...undy.com>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>

Applied to for-next, thanks!


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