On Fri, Sep 13, 2013 at 06:55:11PM +0300, Andy Shevchenko wrote:
> On Fri, Sep 13, 2013 at 6:14 PM, Mika Westerberg
> <mika.westerberg@xxxxxxxxxxxxxxx> wrote:
> > GPIO operation regions is a new feature introduced in ACPI 5.0
> > specification. In practise it means that now ASL code can toggle GPIOs with
> > the help of the OS GPIO driver.
>
> []
>
> > void acpi_gpiochip_add(struct gpio_chip *chip)
> > {
> > + struct acpi_gpio_chip_data *data;
> > + acpi_handle handle;
> > + acpi_status status;
> > +
> > + handle = ACPI_HANDLE(chip->dev);
> > + if (!handle)
> > + return;
> > +
> > + data = kzalloc(sizeof(*data), GFP_KERNEL);
>
> May we use devm_kzalloc here?
The ACPI event handling code still uses kzalloc() and we need to call
acpi_gpiolib_remove() anyway (which undoes this), so I think we should
stick with kzalloc() now.
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