From: Juergen Gross <jgross@suse.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>,
Linux ACPI <linux-acpi@vger.kernel.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>,
Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>,
LKML <linux-kernel@vger.kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: Re: [PATCH v1] ACPI: PAD: xen: Check ACPI_COMPANION() against NULL
Date: Tue, 12 May 2026 18:32:56 +0200 [thread overview]
Message-ID: <372de085-13e8-46ec-9c48-e56c2f8d504f@suse.com> (raw)
In-Reply-To: <3427762.aeNJFYEL58@rafael.j.wysocki>
[-- Attachment #1.1.1: Type: text/plain, Size: 717 bytes --]
On 12.05.26 18:25, Rafael J. Wysocki wrote:
> From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
>
> 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@intel.com>
Acked-by: Juergen Gross <jgross@suse.com>
Juergen
[-- Attachment #1.1.2: OpenPGP public key --]
[-- Type: application/pgp-keys, Size: 3743 bytes --]
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 495 bytes --]
prev parent reply other threads:[~2026-05-12 16:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 16:25 [PATCH v1] ACPI: PAD: xen: Check ACPI_COMPANION() against NULL Rafael J. Wysocki
2026-05-12 16:32 ` Juergen Gross [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=372de085-13e8-46ec-9c48-e56c2f8d504f@suse.com \
--to=jgross@suse.com \
--cc=andriy.shevchenko@linux.intel.com \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=oleksandr_tyshchenko@epam.com \
--cc=rafael@kernel.org \
--cc=sstabellini@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox