linux-kernel - [PATCH RFC 0/6] iio: core: Introduce cleanup.h support for mode locks

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Message-Id: <20251203-lock-impr-v1-0-b4a1fd639423@gmail.com>
Date: Wed, 03 Dec 2025 14:18:14 -0500
From: Kurt Borja <kuurtb@...il.com>
To: Andy Shevchenko <andriy.shevchenko@...el.com>, 
 Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Jonathan Cameron <jic23@...nel.org>, Benson Leung <bleung@...omium.org>, 
 Antoniu Miclaus <antoniu.miclaus@...log.com>, 
 Gwendal Grignou <gwendal@...omium.org>, 
 Shrikant Raskar <raskar.shree97@...il.com>, 
 Per-Daniel Olsson <perdaniel.olsson@...s.com>
Cc: David Lechner <dlechner@...libre.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>, Guenter Roeck <groeck@...omium.org>, 
 Jonathan Cameron <Jonathan.Cameron@...wei.com>, linux-iio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, chrome-platform@...ts.linux.dev, 
 Kurt Borja <kuurtb@...il.com>
Subject: [PATCH RFC 0/6] iio: core: Introduce cleanup.h support for mode
 locks

Hi,

In a recent driver review discussion [1], Andy Shevchenko suggested we
add cleanup.h support for the lock API:

	iio_device_claim_{direct,buffer_mode}().

Which would allow some nice code simplification* in many places. Some
examples are given as patches, but the last two are the biggest
differences.

Although I was never entirely sure if Andy meant cleanup classes for
locks or for iio_trigger_notify_done(), I still think this is a great
addition to the API :).

Thanks for taking a look!

* It's important to mention that David Lechner expressed some concerns
  about this [2], hence why this is an RFC series.

[1] https://lore.kernel.org/linux-iio/aSsBdJZDWcadxEHC@smile.fi.intel.com/
[2] https://lore.kernel.org/linux-iio/248b009e-0401-4531-b9f0-56771e16bdef@baylibre.com/

Signed-off-by: Kurt Borja <kuurtb@...il.com>
---
Kurt Borja (6):
      iio: core: Match iio_device_claim_*() return semantics
      iio: core: Match iio_device_claim_*() naming
      iio: core: Add cleanup.h support for iio_device_claim_*()
      iio: light: vcnl4000: Use cleanup.h for IIO locks
      iio: health: max30102: Use cleanup.h for IIO locks
      iio: light: opt4060: Use cleanup.h for IIO locks

 drivers/iio/adc/ade9000.c                          |  4 +-
 .../common/cros_ec_sensors/cros_ec_sensors_core.c  |  7 +--
 drivers/iio/health/max30100.c                      |  4 +-
 drivers/iio/health/max30102.c                      | 24 +++-------
 drivers/iio/industrialio-core.c                    | 34 +++++++++-----
 drivers/iio/light/opt4060.c                        | 52 +++++++---------------
 drivers/iio/light/vcnl4000.c                       | 24 ++++------
 include/linux/iio/iio.h                            | 24 +++++++++-
 8 files changed, 83 insertions(+), 90 deletions(-)
---
base-commit: f9e05791642810a0cf6237d39fafd6fec5e0b4bb
change-id: 20251130-lock-impr-6f22748c15e8

-- 
 ~ Kurt