[PATCH v4 0/5] platform/x86: panasonic-laptop: Bind to a platform device instead of an ACPI one

[Rafael J. Wysocki]

Hi All,

This is an update of

https://lore.kernel.org/linux-acpi/12863246.O9o76ZdvQC@rafael.j.wysocki/

addressing a driver_data pointer leak in the last patch.  The other patches
in the series remain unchanged.

The previous series description below still applies.

This series is part of a larger effort to switch over all drivers using
the struct acpi_driver interface to the more common struct platform_driver
interface and eliminate the former.  The background is explained in
Documentation/driver-api/acpi/acpi-drivers.rst and in the changelog of
the patch that introduced the above document:

https://lore.kernel.org/all/2396510.ElGaqSPkdT@rafael.j.wysocki/

The bottom line is that the kernel would be better off without struct
acpi_driver and so it is better to get rid of it.

This series carries out driver conversion of the platform x86 Panasonic
hotkey and LCD brightness control driver.

Patch [1/5] changes one function return type to void.

Patch [2/5] fixes the rollback path in acpi_pcc_hotkey_add() and rearranges
the driver removal code ordering to match it.

Patch [3/5] removes some redundant checks from the driver.

Patch [4/5] updates the driver to install an ACPI notify handler by itself
instead of using the .notify() callback from struct acpi_driver, which is
requisite for the driver conversion.

Patch [5/5] converts the driver to using struct platform_driver for device
binding.

Thanks!