From: Mark Brown <broonie@kernel.org>
To: Matt Coster <matt.coster@imgtec.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Frank Binns <frank.binns@imgtec.com>,
Alessio Belle <alessio.belle@imgtec.com>,
Brajesh Gupta <brajesh.gupta@imgtec.com>,
Alexandru Dadu <alexandru.dadu@imgtec.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] drm/imagination: Check for NULL struct dev_pm_domain_list
Date: Sat, 28 Feb 2026 14:25:59 +0000 [thread overview]
Message-ID: <aaL69__gB9mnR_um@sirena.co.uk> (raw)
In-Reply-To: <20260227-single-domain-power-fixes-v1-1-d37ba0825f7c@imgtec.com>
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On Fri, Feb 27, 2026 at 02:12:47PM +0000, Matt Coster wrote:
> While dev_pm_domain_detach_list() itself contains the necessary NULL check,
> the access to struct dev_pm_domain_list->num_pds does not and thus faults
> on devices with <=1 power domains (where the struct dev_pm_domain_list
> machinery is skipped for simplicity).
>
> This can be reproduced on AM625, which produces the following log[1]:
Tested-by: Mark Brown <broonie@kernel.org>
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next prev parent reply other threads:[~2026-02-28 14:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-27 14:12 [PATCH 0/3] drm/imagination: Fixes for power domain handling on single-domain devices Matt Coster
2026-02-27 14:12 ` [PATCH 1/3] drm/imagination: Check for NULL struct dev_pm_domain_list Matt Coster
2026-02-28 14:25 ` Mark Brown [this message]
2026-02-27 14:12 ` [PATCH 2/3] drm/imagination: Detach pm domains if linking fails Matt Coster
2026-02-27 14:12 ` [PATCH 3/3] drm/imagination: Ensure struct pvr_device->power is initialized Matt Coster
2026-03-02 11:40 ` [PATCH 0/3] drm/imagination: Fixes for power domain handling on single-domain devices Alessio Belle
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