linux-kernel - [PATCH v3] iio: imu: inv_icm45600: Initializes inv_icm45600_buffer

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Message-Id: <20251106-icm45600_fix_buffer_sleep_init-v3-1-ea3af68a3e61@tdk.com>
Date: Thu, 06 Nov 2025 15:31:07 +0000
From: Remi Buisson via B4 Relay <devnull+remi.buisson.tdk.com@...nel.org>
To: Jonathan Cameron <jic23@...nel.org>, 
 David Lechner <dlechner@...libre.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>, Remi Buisson <remi.buisson@....com>
Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
 linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3] iio: imu: inv_icm45600: Initializes
 inv_icm45600_buffer_postdisable sleep

From: Remi Buisson <remi.buisson@....com>

The sleep variable in inv_icm45600_buffer_postdisable could be used without
being assigned in case of error. It must be initialized to 0 by default.

Closes:https://lore.kernel.org/linux-iio/aPi6Xw-ZoUkW76zR@stanley.mountain/

Fixes: 06674a72cf7a ("iio: imu: inv_icm45600: add buffer support in iio devices")
Signed-off-by: Remi Buisson <remi.buisson@....com>
---
Changes in v3:
- Fix commit message: fix and closes moved to SoB
- Fix assignement of sleep variable after declaration.
- Link to v2: https://lore.kernel.org/r/20251031-icm45600_fix_buffer_sleep_init-v2-1-5cdc04e1bcba@tdk.com

Changes in v2:
- Moving pacth description from cover-letter to single commit
- Link to v1: https://lore.kernel.org/r/20251031-icm45600_fix_buffer_sleep_init-v1-1-924efbb165e8@tdk.com
---
 drivers/iio/imu/inv_icm45600/inv_icm45600_buffer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/imu/inv_icm45600/inv_icm45600_buffer.c b/drivers/iio/imu/inv_icm45600/inv_icm45600_buffer.c
index 2efcc177f9d60a6a2509e448c0ddaf4b9e1fd755..2b9ea317385ceb680f013c4c1b2a6a74fbe5d7e7 100644
--- a/drivers/iio/imu/inv_icm45600/inv_icm45600_buffer.c
+++ b/drivers/iio/imu/inv_icm45600/inv_icm45600_buffer.c
@@ -370,6 +370,7 @@ static int inv_icm45600_buffer_postdisable(struct iio_dev *indio_dev)
 		return -EINVAL;
 	}
 
+	sleep = 0;
 	scoped_guard(mutex, &st->lock)
 		ret = _inv_icm45600_buffer_postdisable(st, sensor, watermark, &sleep);
 

---
base-commit: 70437bbd7529e9860fb7f0c92a89e0e6abaa994e
change-id: 20251031-icm45600_fix_buffer_sleep_init-8062f6e07f84

Best regards,
-- 
Remi Buisson <remi.buisson@....com>