linux-kernel - Re: [PATCH -next] iio: adc: add missing clk_disable_unprepare() in rzg2l_adc_pm_runtime

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Message-ID: <CAHp75Vdim8S5kMZY1DYSMM-gLbPHoqRcEMD-rcZ1sm9hPeTaOw@mail.gmail.com>
Date:   Fri, 20 Aug 2021 12:17:46 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Yang Yingliang <yangyingliang@...wei.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-iio <linux-iio@...r.kernel.org>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Jonathan Cameron <jic23@...nel.org>
Subject: Re: [PATCH -next] iio: adc: add missing clk_disable_unprepare() in rzg2l_adc_pm_runtime_resume()

On Fri, Aug 20, 2021 at 4:52 AM Yang Yingliang <yangyingliang@...wei.com> wrote:
> On 2021/8/20 1:20, Andy Shevchenko wrote:
> > On Thu, Aug 19, 2021 at 4:19 PM Yang Yingliang <yangyingliang@...wei.com> wrote:
> >> Add clk_disable_unprepare() on error path in rzg2l_adc_pm_runtime_resume().
> > ...
> >
> >>          ret = clk_prepare_enable(adc->adclk);
> >> -       if (ret)
> >> +       if (ret) {
> >> +               clk_disable_unprepare(adc->pclk);
> >>                  return ret;
> >> +       }
> > Huh?!
> The pclk need be disabled, when enable adclk failed.
>        ^                                                         ^^

Indeed. I'm wondering if those clocks behave like a bulk or any
combination is possible on a working case?

-- 
With Best Regards,
Andy Shevchenko