linux-kernel - Re: [PATCH RESEND v6 6/8] mfd: hi6421-spmi-pmic: move driver from staging

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Date:   Thu, 24 Jun 2021 16:07:49 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     Lee Jones <lee.jones@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linuxarm@...wei.com, mauro.chehab@...wei.com,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev
Subject: Re: [PATCH RESEND v6 6/8] mfd: hi6421-spmi-pmic: move driver from
 staging

On Thu, Jun 24, 2021 at 02:36:05PM +0200, Mauro Carvalho Chehab wrote:
> Em Thu, 24 Jun 2021 12:33:28 +0100
> Lee Jones <lee.jones@...aro.org> escreveu:
> 
> > On Thu, 24 Jun 2021, Mauro Carvalho Chehab wrote:
> > > +static void hi6421_spmi_pmic_remove(struct spmi_device *pdev)
> > > +{
> > > +	struct hi6421_spmi_pmic *ddata = dev_get_drvdata(&pdev->dev);
> > > +
> > > +	free_irq(ddata->irq, ddata);  
> > 
> > No devm_* version?
> 
> Are there a devm_* variant for gpio_to_irq()?
> 

It's the request_threaded_irq() which needs unwound not the gpio_to_irq()
so you could use devm_request_threaded_irq().

Using the devm_ version would fix a leak in probe which Smatch is
supposed to find but does not.  :(

regards,
dan carpenter