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Message-ID: <20190830124554.GB2870@ninjato>
Date: Fri, 30 Aug 2019 14:45:54 +0200
From: Wolfram Sang <wsa@...-dreams.de>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>,
linux-i2c@...r.kernel.org, Chanwoo Choi <cw00.choi@...sung.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Alessandro Zummo <a.zummo@...ertech.it>,
linux-kernel@...r.kernel.org, linux-rtc@...r.kernel.org
Subject: Re: [PATCH 1/2] rtc: max77686: convert to devm_i2c_new_dummy_device()
On Thu, Aug 29, 2019 at 10:57:52PM +0200, Alexandre Belloni wrote:
> On 20/08/2019 17:42:37+0200, Wolfram Sang wrote:
> > I was about to simplify the call to i2c_unregister_device() when I
> > realized that converting to devm_i2c_new_dummy_device() will simplify
> > the driver a lot. So I took this approach.
> >
> > Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
> > ---
> > Build tested only, buildbot is happy, too.
> >
> > Please apply to your tree.
> >
>
> I'm confused because I already applied:
> https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git/commit/?h=rtc-next&id=7150710f3084de8d35ce3221eeae2caee8813f92
The above was a mass conversion to i2c_new_dummy_device() to make sure
all in-kernel users use the API returning an ERRPTR. Mass conversion to
the devm_ variant of the same function was too troublesome.
With another series, I wanted to remove superfluous error checking of
i2c_unregister_device() because it is NULL-ptr safe, like here:
> > - if (info->rtc)
> > - i2c_unregister_device(info->rtc);
But for these two RTC drivers, I figured moving to devm_* is way easier
than fixing up the mass conversion result from coccinelle.
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