linux-kernel - Re: [PATCH v1 1/1] gpiolib: Fix the error path order in gpiochip_add_data_with

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]

Message-ID: <ZddLRAqxFr7v3Zqs@smile.fi.intel.com>
Date: Thu, 22 Feb 2024 15:25:24 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/1] gpiolib: Fix the error path order in
 gpiochip_add_data_with_key()

On Thu, Feb 22, 2024 at 10:37:06AM +0100, Bartosz Golaszewski wrote:
> On Wed, Feb 21, 2024 at 8:28 PM Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:
> >
> > After shuffling the code, error path wasn't updated correctly.
> > Fix it here.

> >         gpiochip_irqchip_free_valid_mask(gc);
> >  err_remove_acpi_chip:
> >         acpi_gpiochip_remove(gc);
> > +       gpiochip_remove_pin_ranges(gc);
> >  err_remove_of_chip:
> >         gpiochip_free_hogs(gc);
> >         of_gpiochip_remove(gc);
> 
> This undoes machine_gpiochip_add() and I think it also needs to be
> moved before acpi_gpiochip_remove().

You mean it should be like

       gpiochip_irqchip_free_valid_mask(gc);
       gpiochip_free_hogs(gc);
err_remove_acpi_chip:
       acpi_gpiochip_remove(gc);
       gpiochip_remove_pin_ranges(gc);
err_remove_of_chip:
       of_gpiochip_remove(gc);

?

-- 
With Best Regards,
Andy Shevchenko