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From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Ethan Tidmore <ethantidmore06@gmail.com>
Cc: "Linus Walleij" <linusw@kernel.org>,
	"Jonathan Cameron" <jic23@kernel.org>,
	"David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>,
	linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 2/4] iio: gyro: mpu3050: Fix irq resource leak
Date: Tue, 24 Feb 2026 12:03:43 +0200	[thread overview]
Message-ID: <aZ13f-uxphEnXKGU@smile.fi.intel.com> (raw)
In-Reply-To: <20260224023511.274038-3-ethantidmore06@gmail.com>

On Mon, Feb 23, 2026 at 08:35:09PM -0600, Ethan Tidmore wrote:
> The interrupt handler is setup but only a few lines down if
> iio_trigger_register() fails the function returns without properly
> releasing the handler:

>         ret = request_threaded_irq(irq,
>                                    mpu3050_irq_handler,
>                                    mpu3050_irq_thread,
>                                    irq_trig,
>                                    mpu3050->trig->name,
>                                    mpu3050->trig);
> 
> ...
> 
>         ret = iio_trigger_register(mpu3050->trig);
>         if (ret)
>                 return ret;
> 
>         indio_dev->trig = iio_trigger_get(mpu3050->trig);
> 
>         return 0;
> }

Same comment, try to avoid citing the existing information (id est
the contents of the file).

> Add cleanup goto to resolve resource leak.
> 
> Detected by Smatch:
> drivers/iio/gyro/mpu3050-core.c:1128 mpu3050_trigger_probe() warn:
> 'irq' from request_threaded_irq() not released on lines: 1124.

-- 
With Best Regards,
Andy Shevchenko



  parent reply	other threads:[~2026-02-24 10:03 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-24  2:35 [PATCH v2 0/4] Multiple bug fixes Ethan Tidmore
2026-02-24  2:35 ` [PATCH v2 1/4] iio: gyro: mpu3050: Fix incorrect free_irq() variable Ethan Tidmore
2026-02-24  9:55   ` Linus Walleij
2026-02-24 10:02   ` Andy Shevchenko
2026-02-24  2:35 ` [PATCH v2 2/4] iio: gyro: mpu3050: Fix irq resource leak Ethan Tidmore
2026-02-24  9:56   ` Linus Walleij
2026-02-24 10:03   ` Andy Shevchenko [this message]
2026-02-24  2:35 ` [PATCH v2 3/4] iio: gyro: mpu3050: Move iio_device_register() to correct location Ethan Tidmore
2026-02-24  9:56   ` Linus Walleij
2026-02-24 10:05   ` Andy Shevchenko
2026-02-24  2:35 ` [PATCH v2 4/4] iio: gyro: mpu3050: Fix out-of-sequence free_irq() Ethan Tidmore
2026-02-24  9:57   ` Linus Walleij
2026-02-24 10:06   ` Andy Shevchenko
2026-02-24  2:42 ` [PATCH v2 0/4] Multiple bug fixes Ethan Tidmore
2026-02-24 10:08 ` Andy Shevchenko

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