linux-kernel - Re: [PATCH v2 6/7] gpio: mockup: improve the error message

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Message-ID: <CAHp75VdiCsE2nHXHjvYfeG43oVCF0i8x8-hk=uTTLBOdH91U6Q@mail.gmail.com>
Date:   Tue, 30 May 2017 21:59:05 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Bartosz Golaszewski <brgl@...ev.pl>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 6/7] gpio: mockup: improve the error message

On Tue, May 30, 2017 at 11:58 AM, Bartosz Golaszewski <brgl@...ev.pl> wrote:
> Indicate the error number and make the message a bit more elaborate.

> +                       dev_err(dev,
> +                               "adding gpiochip failed: %d (base: %d, ngpio: %d)\n",
> +                               ret, base, base < 0 ? ngpio : base + ngpio);

You may consider to use
'gpio_mockup_add' instead of 'adding gpiochip'. The latter points the
reader first to gpiochip_add family of functions while you run a
wrapper on top of it.

-- 
With Best Regards,
Andy Shevchenko