[PATCH v4 03/13] iio: light: iqs621-als: use devm_blocking_notifier_chain_register()
From: Eliav Farber <hidden>
Date: 2026-07-26 10:18:12
Also in:
linux-acpi, linux-gpio, linux-iio, linux-pwm, lkml, platform-driver-x86
Subsystem:
iio subsystem and drivers, the rest · Maintainers:
Jonathan Cameron, Linus Torvalds
Replace the blocking_notifier_chain_register() + devm_add_action_or_reset() pattern with a single call to devm_blocking_notifier_chain_register(), removing the iqs621_als_notifier_unregister() callback. Signed-off-by: Eliav Farber <redacted> Acked-by: Jonathan Cameron <redacted> --- drivers/iio/light/iqs621-als.c | 24 +++--------------------- 1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/drivers/iio/light/iqs621-als.c b/drivers/iio/light/iqs621-als.c
index cd5843e3e2c3..f9d215ef1970 100644
--- a/drivers/iio/light/iqs621-als.c
+++ b/drivers/iio/light/iqs621-als.c@@ -179,19 +179,6 @@ static int iqs621_als_notifier(struct notifier_block *notifier, return NOTIFY_OK; } -static void iqs621_als_notifier_unregister(void *context) -{ - struct iqs621_als_private *iqs621_als = context; - struct iio_dev *indio_dev = iqs621_als->indio_dev; - int ret; - - ret = blocking_notifier_chain_unregister(&iqs621_als->iqs62x->nh, - &iqs621_als->notifier); - if (ret) - dev_err(indio_dev->dev.parent, - "Failed to unregister notifier: %d\n", ret); -} - static int iqs621_als_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask)
@@ -563,19 +550,14 @@ static int iqs621_als_probe(struct platform_device *pdev) mutex_init(&iqs621_als->lock); iqs621_als->notifier.notifier_call = iqs621_als_notifier; - ret = blocking_notifier_chain_register(&iqs621_als->iqs62x->nh, - &iqs621_als->notifier); + ret = devm_blocking_notifier_chain_register(&pdev->dev, + &iqs621_als->iqs62x->nh, + &iqs621_als->notifier); if (ret) { dev_err(&pdev->dev, "Failed to register notifier: %d\n", ret); return ret; } - ret = devm_add_action_or_reset(&pdev->dev, - iqs621_als_notifier_unregister, - iqs621_als); - if (ret) - return ret; - return devm_iio_device_register(&pdev->dev, indio_dev); }
--
2.47.3