linux-kernel - [PATCH 1/7] iio: buffer: document iio_push_to_buffers_with_ts

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Message-Id: <20250912-iio-doc-push-to-buffers-context-v1-1-c4aad013d96e@baylibre.com>
Date: Fri, 12 Sep 2025 11:05:52 -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 1/7] iio: buffer: document
 iio_push_to_buffers_with_ts_unaligned() may sleep

Add Context: documentation comment that
iio_push_to_buffers_with_ts_unaligned() may sleep because it calls
devm_krealloc().

Also document Return: value while here.

Suggested-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: David Lechner <dlechner@...libre.com>
---
 drivers/iio/industrialio-buffer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index a80f7cc25a27109cfe22ce447c4117fc94bc8310..7da43a1f2f75f32dc93b9a5fe903378a79e82fe3 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -2401,6 +2401,9 @@ EXPORT_SYMBOL_GPL(iio_push_to_buffers);
  * not require space for the timestamp, or 8 byte alignment of data.
  * It does however require an allocation on first call and additional
  * copies on all calls, so should be avoided if possible.
+ *
+ * Context: May sleep.
+ * Return: 0 on success, negative error code on failure.
  */
 int iio_push_to_buffers_with_ts_unaligned(struct iio_dev *indio_dev,
 					  const void *data,

-- 
2.43.0