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From: "Bjørn Mork" <bjorn@mork.no>
To: Michael Walle <michael@walle.cc>
Cc: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
	Matti Vaittinen <mazziesaccount@gmail.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-power@fi.rohmeurope.com
Subject: Re: [PATCH v2 2/3] gpio: gpio-regmap: Use devm_add_action()
Date: Fri, 21 May 2021 10:38:35 +0200	[thread overview]
Message-ID: <87a6ooh46s.fsf@miraculix.mork.no> (raw)
In-Reply-To: <12bb40f022be0378ed493e7ad33122b0@walle.cc> (Michael Walle's message of "Fri, 21 May 2021 10:10:39 +0200")

Michael Walle <michael@walle.cc> writes:

> Am 2021-05-21 08:28, schrieb Matti Vaittinen:
>> Slightly simplify the devm_gpio_regmap_register() by using the
>> devm_add_action().
>
> Hm, nice, but what bothers me a bit is that no other subsystem
> does it that way, eg. hwmon/hwmon.c or watchdog/watchdog_core.c.
> They also store just one pointer, thus could be simplified in the
> same way. What I don't know is if devm_add_action() was intended
> to be used this way. So I can't say much for this patch ;)

There are some examples.  Like:

int devm_i2c_add_adapter(struct device *dev, struct i2c_adapter *adapter)
{
        int ret;

        ret = i2c_add_adapter(adapter);
        if (ret)
                return ret;

        return devm_add_action_or_reset(dev, devm_i2c_del_adapter, adapter);
}


You should probably use the devm_add_action_or_reset() wrapper here too,
catching the unlikely devm_add_action() alloc failure.


Bjørn

  reply	other threads:[~2021-05-21  8:38 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21  6:27 [PATCH v2 0/3] gpio: gpio-regmap: Support few custom operations Matti Vaittinen
2021-05-21  6:27 ` [PATCH v2 1/3] gpio: regmap: Support few IC specific operations Matti Vaittinen
2021-05-21  8:04   ` Michael Walle
2021-05-21 10:09   ` Andy Shevchenko
2021-05-21 10:19     ` Michael Walle
2021-05-21 10:25       ` Vaittinen, Matti
2021-05-21 10:46         ` Michael Walle
2021-05-21 11:36           ` Vaittinen, Matti
2021-05-21 11:19       ` Andy Shevchenko
2021-05-21 11:41         ` Vaittinen, Matti
2021-05-21 10:20     ` Vaittinen, Matti
2021-05-21  6:28 ` [PATCH v2 2/3] gpio: gpio-regmap: Use devm_add_action() Matti Vaittinen
2021-05-21  8:10   ` Michael Walle
2021-05-21  8:38     ` Bjørn Mork [this message]
2021-05-21 10:30       ` Vaittinen, Matti
2021-05-21 16:35         ` Bartosz Golaszewski
2021-05-24  5:01           ` Vaittinen, Matti
2021-05-21 10:10   ` Andy Shevchenko
2021-05-21  6:29 ` [PATCH v2 3/3] gpio: bd71815: Use gpio-regmap Matti Vaittinen
2021-05-21 10:12   ` Andy Shevchenko

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