Re: [PATCH v1] ACPI: PAD: xen: Check ACPI_COMPANION() against NULL

[Juergen Gross]

On 12.05.26 18:25, Rafael J. Wysocki wrote:
> From: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx>
>
> Every platform driver can be forced to match a device that doesn't match
> its list of device IDs because of device_match_driver_override(), so
> platform drivers that rely on the existence of a device's ACPI companion
> object need to verify its presence.
>
> Accordingly, add a requisite ACPI_COMPANION() check against NULL to the
> Xen variant of the ACPI processor aggregator device (PAD) driver.
>
> Fixes: 112b2f978afe ("ACPI: PAD: xen: Convert to a platform driver")
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

Acked-by: Juergen Gross <jgross@xxxxxxxx>


Juergen

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