linux-kernel - Re: [PATCH 09/10] pci: devres: remove legacy pcim

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Tue, 16 Jan 2024 23:40:26 +0200
From: andy.shevchenko@...il.com
To: Philipp Stanner <pstanner@...hat.com>
Cc: Jonathan Corbet <corbet@....net>, Hans de Goede <hdegoede@...hat.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Sam Ravnborg <sam@...nborg.org>, dakr@...hat.com,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH 09/10] pci: devres: remove legacy pcim_release()

Mon, Jan 15, 2024 at 03:46:20PM +0100, Philipp Stanner kirjoitti:
> Thanks to preceding cleanup steps, pcim_release() is now not needed
> anymore and can be replaced by pcim_disable_device(), which is the exact
> counterpart to pcim_enable_device().
> This permits removing further parts of the old devres API.
> 
> Replace pcim_release() with pcim_disable_device().
> Remove the now surplus get_dr() function.

..

> +	devm_add_action(&pdev->dev, pcim_disable_device, pdev);

No error check?

> +	return pci_enable_device(pdev);

Maybe

	ret = pci_enable_device(...);
	if (ret)
		return ret;

	return devm_add_action_or_reset(...)?

I could think of side effects of this, so perhaps the commit message and/or
code needs a comment on why the above proposal can _not_ be used?

-- 
With Best Regards,
Andy Shevchenko