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

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Message-ID: <CAMRc=MfDL_4ExbzAYkus3M7=Cwoee6kV=XXX5kVbvU6j2c7XXA@mail.gmail.com>
Date:   Wed, 31 May 2017 12:54:22 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
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

2017-05-30 20:59 GMT+02:00 Andy Shevchenko <andy.shevchenko@...il.com>:
> 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.
>

But this message can also be emitted if the module params are invalid,
in which case we don't even enter gpio_mockup_add().

Thanks,
Bartosz