linux-kernel - Re: [PATCH 15/20] gpio/rockchip: disable and put clocks when gpiolib register failed

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Message-ID: <CACRpkdbgi1XZq=Nmeum=2Fvv68pxj=66nseAiv5HpVOsnMfx_A@mail.gmail.com>
Date:   Tue, 4 Oct 2022 09:16:48 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Jianqun Xu <jay.xu@...k-chips.com>
Cc:     heiko@...ech.de, brgl@...ev.pl, andriy.shevchenko@...ux.intel.com,
        robert.moore@...el.com, robh@...nel.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        lenb@...nel.org, rafael@...nel.org
Subject: Re: [PATCH 15/20] gpio/rockchip: disable and put clocks when gpiolib
 register failed

On Tue, Oct 4, 2022 at 9:16 AM Linus Walleij <linus.walleij@...aro.org> wrote:

> On Tue, Sep 20, 2022 at 12:31 PM Jianqun Xu <jay.xu@...k-chips.com> wrote:
>
> > When gpiolib register failed, the clocks should be disabled and put.
> >
> > Signed-off-by: Jianqun Xu <jay.xu@...k-chips.com>
> (...)
> > +err_put_clk:
> > +       clk_put(bank->clk);
> > +       clk_put(bank->db_clk);
> > +       clk_disable_unprepare(bank->clk);
> > +       clk_disable_unprepare(bank->db_clk);
>
> Always clk_disable_unprepare() before clk_put().
>
> I think you can drop clk_put() if you switch to devres dev_clk_get()
> instead.

devm_clk_get() I mean.

Yours,
Linus Walleij