From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: "Marco Scardovi (scardracs)" <mscardovi95@gmail.com>
Cc: mika.westerberg@linux.intel.com, brgl@kernel.org,
linusw@kernel.org, linux-acpi@vger.kernel.org,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
westeri@kernel.org
Subject: Re: [PATCH 2/2] gpiolib: acpi: Fix resource leak in OpRegion cleanup path
Date: Tue, 19 May 2026 11:28:00 +0300 [thread overview]
Message-ID: <agwfEMtEctXYC1oc@ashevche-desk.local> (raw)
In-Reply-To: <20260519070039.9280-3-mscardovi95@gmail.com>
On Tue, May 19, 2026 at 09:00:31AM +0200, Marco Scardovi (scardracs) wrote:
> If acpi_remove_address_space_handler() fails, the cleanup function
> acpi_gpiochip_free_regions() previously returned early. This leaks
> the connections list and all requested GPIO descriptors.
>
> Remove the early return statement so that connection cleanup and freeing
> of descriptors are always executed, preventing memory leaks in teardown
> failure paths.
Same problem may happen in the acpi_gpio_adr_space_handler().
What you need is to split the list and GPIO cleaning into a helper
which will be used in both cases.
This might need a Fixes tag.
> Assisted-by: Antigravity:gemini-3-flash
> Signed-off-by: Marco Scardovi <mscardovi95@gmail.com>
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2026-05-19 8:28 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-18 7:53 [PATCH 00/12] gpiolib: acpi: Refactor, harden, and modularize ACPI GPIO support Marco Scardovi (scardracs)
2026-05-18 7:53 ` [PATCH 01/12] gpiolib: acpi: Use snprintf() for ACPI event name formatting Marco Scardovi (scardracs)
2026-05-18 8:07 ` Andy Shevchenko
2026-05-18 7:53 ` [PATCH 02/12] gpiolib: acpi: Modernize string parsing in quirks layer Marco Scardovi (scardracs)
2026-05-18 8:11 ` Andy Shevchenko
2026-05-18 7:53 ` [PATCH 03/12] gpiolib: acpi: Add robust bounds-checking for GPIO pin resources Marco Scardovi (scardracs)
2026-05-18 10:33 ` Mika Westerberg
2026-05-19 7:00 ` [PATCH v2 0/2] gpiolib: acpi: Add bounds-checking and fix leak in OpRegion Marco Scardovi (scardracs)
2026-05-19 7:00 ` [PATCH 1/2] gpiolib: acpi: Add robust bounds-checking for GPIO pin resources Marco Scardovi (scardracs)
2026-05-19 7:25 ` Andy Shevchenko
2026-05-19 7:00 ` [PATCH 2/2] gpiolib: acpi: Fix resource leak in OpRegion cleanup path Marco Scardovi (scardracs)
2026-05-19 8:28 ` Andy Shevchenko [this message]
2026-05-20 7:45 ` [PATCH v3 0/2] gpiolib: acpi: Fix bounds-checking and connection leak Marco Scardovi (scardracs)
2026-05-20 7:45 ` [PATCH v3 1/2] gpiolib: acpi: Add robust bounds-checking for GPIO pin resources Marco Scardovi (scardracs)
2026-06-02 7:34 ` Andy Shevchenko
2026-05-20 7:45 ` [PATCH v3 2/2] Fixes: gpiolib: acpi: resource leak in OpRegion Marco Scardovi (scardracs)
2026-06-02 7:45 ` Andy Shevchenko
2026-06-02 7:47 ` [PATCH v3 0/2] gpiolib: acpi: Fix bounds-checking and connection leak Andy Shevchenko
2026-05-18 7:53 ` [PATCH 04/12] gpiolib: acpi: Fix resource leak in OpRegion cleanup path Marco Scardovi (scardracs)
2026-05-18 7:53 ` [PATCH 05/12] gpiolib: acpi: Declare shared structures in gpiolib-acpi.h Marco Scardovi (scardracs)
2026-05-18 8:21 ` Andy Shevchenko
2026-05-18 7:53 ` [PATCH 06/12] gpiolib: acpi: Expose core GPIO resource and OpRegion helpers Marco Scardovi (scardracs)
2026-05-18 7:53 ` [PATCH 07/12] gpiolib: acpi: Add dedicated Operation Region module Marco Scardovi (scardracs)
2026-05-18 7:53 ` [PATCH 08/12] gpiolib: acpi: Divert OpRegion registration callbacks from core Marco Scardovi (scardracs)
2026-05-18 7:53 ` [PATCH 09/12] gpiolib: acpi: Remove unused static address space emulation " Marco Scardovi (scardracs)
2026-05-18 7:53 ` [PATCH 10/12] gpiolib: acpi: Declare shared event helpers in gpiolib-acpi.h Marco Scardovi (scardracs)
2026-05-18 7:53 ` [PATCH 11/12] gpiolib: acpi: Add dedicated ACPI GPIO events module Marco Scardovi (scardracs)
2026-05-18 7:53 ` [PATCH 12/12] gpiolib: acpi: Decouple Event and Interrupt handling from core Marco Scardovi (scardracs)
2026-05-18 8:19 ` [PATCH 00/12] gpiolib: acpi: Refactor, harden, and modularize ACPI GPIO support Andy Shevchenko
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