linux-kernel - Re: [PATCH] gpiolib: acpi: initialize acpi_gpio

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Message-ID: <aMeyluS3KuzkTJy2@smile.fi.intel.com>
Date: Mon, 15 Sep 2025 09:30:46 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc: Sébastien Szymanski <sebastien.szymanski@...adeus.com>,
	Mika Westerberg <westeri@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>, linux-gpio@...r.kernel.org,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpiolib: acpi: initialize acpi_gpio_info struct

On Mon, Sep 15, 2025 at 06:47:03AM +0200, Mika Westerberg wrote:
> On Fri, Sep 12, 2025 at 10:18:50PM +0200, Sébastien Szymanski wrote:
> > Since commit 7c010d463372 ("gpiolib: acpi: Make sure we fill struct
> > acpi_gpio_info"), uninitialized acpi_gpio_info struct are passed to
> > __acpi_find_gpio() and later in the call stack info->quirks is used in
> > acpi_populate_gpio_lookup. This breaks the i2c_hid_cpi driver:
> > 
> > [   58.122916] i2c_hid_acpi i2c-UNIW0001:00: HID over i2c has not been provided an Int IRQ
> > [   58.123097] i2c_hid_acpi i2c-UNIW0001:00: probe with driver i2c_hid_acpi failed with error -22
> > 
> > Fix this by initializing the acpi_gpio_info pass to __acpi_find_gpio()
> > 
> > Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220388
> > Fixes: 7c010d463372 ("gpiolib: acpi: Make sure we fill struct acpi_gpio_info")
> > Signed-off-by: Sébastien Szymanski <sebastien.szymanski@...adeus.com>
> 
> Should have stable tag too, I think. Andy can add that once he applies.

I can add, but this won't appear in the respective mailing list. Or did I miss
a new tag for stable?

> Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>

-- 
With Best Regards,
Andy Shevchenko