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Date:   Wed, 27 Sep 2023 16:46:44 +0300
From:   Andy Shevchenko <andy@kernel.org>
To:     Duje =?utf-8?Q?Mihanovi=C4=87?= <duje.mihanovic@skole.hr>
Cc:     Daniel Mack <daniel@zonque.org>,
        Haojian Zhuang <haojian.zhuang@gmail.com>,
        Robert Jarzmik <robert.jarzmik@free.fr>,
        Russell King <linux@armlinux.org.uk>,
        Alan Stern <stern@rowland.harvard.edu>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Bartosz Golaszewski <brgl@bgdev.pl>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org
Subject: Re: [PATCH RFC v2 3/6] ARM: pxa: Convert Spitz CF power control to
 GPIO descriptors
Message-ID: <ZRQyREMrfCaDMnI0@smile.fi.intel.com>
References: <20230926-pxa-gpio-v2-0-984464d165dd@skole.hr>
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 <ZRMDqVCtrUyhcqaw@smile.fi.intel.com>
 <5984688.lOV4Wx5bFT@radijator>
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On Wed, Sep 27, 2023 at 02:56:07PM +0200, Duje Mihanović wrote:
> On Tuesday, September 26, 2023 6:15:37 PM CEST Andy Shevchenko wrote:
> > On Tue, Sep 26, 2023 at 05:46:24PM +0200, Duje Mihanović wrote:

...

> > > +	cf_power = gpiod_get(&pxa_device_mci.dev, "cf_power", GPIOD_ASIS);
> > > +	if (IS_ERR(cf_power)) {
> > > +		dev_err(&pxa_device_mci.dev,
> > > +				"failed to get power control GPIO with 
> %ld\n",
> > > +				PTR_ERR(cf_power));
> > > +		return;
> > > +	}
> > > 
> > > +	gpiod_put(cf_power);
> > 
> > Don't you want to use guarded gpiod_get()?
> > Okay, it seems not yet in the pending list, but we can survive without that.
> 
> Can you please elaborate? If I understand correctly, the if statement right 
> after gpiod_get is a guard.

It's about RAII version of the gpiod_get(). It's quite a new thing
in the Linux kernel.

-- 
With Best Regards,
Andy Shevchenko