[PATCH v4 6/9] iio: buffer-dma: annotate the queue lock helpers

[Rupesh Majhi <zoone.rupert@gmail.com>]

iio_dma_buffer_lock_queue() and iio_dma_buffer_unlock_queue() take and
release the queue lock for the core. Annotate them with that lock so
context analysis checks them.

Signed-off-by: Rupesh Majhi <zoone.rupert@gmail.com>
---
Cc: Marco Elver <elver@google.com>
Cc: Bart Van Assche <bvanassche@acm.org>

 drivers/iio/buffer/industrialio-buffer-dma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c
index 1daac23087a7..b42b70e9b06d 100644
--- a/drivers/iio/buffer/industrialio-buffer-dma.c
+++ b/drivers/iio/buffer/industrialio-buffer-dma.c
@@ -763,6 +763,7 @@ struct device *iio_dma_buffer_get_dma_dev(struct iio_buffer *buffer)
 EXPORT_SYMBOL_NS_GPL(iio_dma_buffer_get_dma_dev, "IIO_DMA_BUFFER");
 
 void iio_dma_buffer_lock_queue(struct iio_buffer *buffer)
+	__acquires(&iio_buffer_to_queue(buffer)->lock)
 {
 	struct iio_dma_buffer_queue *queue = iio_buffer_to_queue(buffer);
 
@@ -771,6 +772,7 @@ void iio_dma_buffer_lock_queue(struct iio_buffer *buffer)
 EXPORT_SYMBOL_NS_GPL(iio_dma_buffer_lock_queue, "IIO_DMA_BUFFER");
 
 void iio_dma_buffer_unlock_queue(struct iio_buffer *buffer)
+	__releases(&iio_buffer_to_queue(buffer)->lock)
 {
 	struct iio_dma_buffer_queue *queue = iio_buffer_to_queue(buffer);
 
-- 
2.43.0