linux-kernel - Re: [PATCH] drivers: power: Add support for bq24735 charger

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Message-ID: <CAKDJKT4D7VV1pxC1Bme5wptEW=2uyWBccVCv06tTwgrW20diVA@mail.gmail.com>
Date:	Thu, 19 Sep 2013 19:26:41 +0530
From:	Manish Badarkhe <badarkhe.manish@...il.com>
To:	Rhyland Klein <rklein@...dia.com>
Cc:	Anton Vorontsov <anton@...msg.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Darbha Sriharsha <dsriharsha@...dia.com>,
	devicetree@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-tegra@...r.kernel.org
Subject: Re: [PATCH] drivers: power: Add support for bq24735 charger

Hi

> +               ret = gpio_request(charger_device->pdata->status_gpio, name);
> +               if (ret) {
> +                       dev_err(&client->dev, "Failed gpio request: %d\n", ret);
> +                       goto err_free_name;
> +               }
> +       }

snip ...

> +err_free_name:
> +       if (name && name != charger_device->pdata->name)
> +               kfree(name);
> +
> +       return ret;
> +}

Like to know, Is there a need to free gpio which has been requested previously?
Alternatively, this can be get requested using "devm_" function so
that it will get
freed automatically during removal.

> +static int bq24735_charger_remove(struct i2c_client *client)
> +{
> +       struct bq24735_charger *charger_device = i2c_get_clientdata(client);
> +
> +       if (charger_device->irq)
> +               devm_free_irq(charger_device->dev, charger_device->irq,
> +                               &charger_device->charger);
> +
> +       power_supply_unregister(&charger_device->charger);
> +
> +       if (charger_device->charger.name != charger_device->pdata->name)
> +               kfree(charger_device->charger.name);
> +
> +       return 0;

Ditto, If go with free_gpio.


Regards
Manish Badarkhe
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