linux-kernel - [PATCH 2/7] iio: buffer: iio_push_to_buffers_with_ts_unaligned() might

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Message-Id: <20250912-iio-doc-push-to-buffers-context-v1-2-c4aad013d96e@baylibre.com>
Date: Fri, 12 Sep 2025 11:05:53 -0500
From: David Lechner <dlechner@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, 
 Andy Shevchenko <andy.shevchenko@...il.com>, 
 David Lechner <dlechner@...libre.com>
Subject: [PATCH 2/7] iio: buffer: iio_push_to_buffers_with_ts_unaligned()
 might_sleep()

Call might_sleep() in iio_push_to_buffers_with_ts_unaligned() since it
can allocate memory, which may sleep.

Suggested-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: David Lechner <dlechner@...libre.com>
---
 drivers/iio/industrialio-buffer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 7da43a1f2f75f32dc93b9a5fe903378a79e82fe3..5599fa37b698dda6ff126496f62939331c12f524 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -2412,6 +2412,8 @@ int iio_push_to_buffers_with_ts_unaligned(struct iio_dev *indio_dev,
 {
 	struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev);
 
+	might_sleep();
+
 	/*
 	 * Conservative estimate - we can always safely copy the minimum
 	 * of either the data provided or the length of the destination buffer.

-- 
2.43.0