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

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Message-ID: <CACRpkdb0wysqkSST7Qv+yy8g53oTpYWvbSqxLk6EVMEABQW4iA@mail.gmail.com>
Date:   Tue, 4 Oct 2022 09:16:19 +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, 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.

Yours,
Linus Walleij