[RFC PATCH 04/14] iio: core,buffer: wrap iio_buffer_put() call into iio_buffers_put()

Alexandru Ardelean
2020-05-08T13:54:15Z

The name (and the wrapper) seems superfluous now, but when more buffers
will be attached to the IIO device this will be a bit more useful.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
drivers/iio/iio_core.h | 4 ++++
drivers/iio/industrialio-buffer.c | 10 ++++++++++
drivers/iio/industrialio-core.c | 2 +-
3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
index fd9a5f1d5e51..39ec0344fb68 100644
--- a/drivers/iio/iio_core.h
+++ b/drivers/iio/iio_core.h
@@ -51,6 +51,8 @@ void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev);
#define iio_buffer_poll_addr (&iio_buffer_poll)
#define iio_buffer_read_outer_addr (&iio_buffer_read_outer)

+void iio_device_buffers_put(struct iio_dev *indio_dev);
+
void iio_disable_all_buffers(struct iio_dev *indio_dev);
void iio_buffer_wakeup_poll(struct iio_dev *indio_dev);

@@ -66,6 +68,8 @@ static inline int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev)

static inline void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev) {}

+static inline void iio_device_buffers_put(struct iio_dev *indio_dev) {}
+
static inline void iio_disable_all_buffers(struct iio_dev *indio_dev) {}
static inline void iio_buffer_wakeup_poll(struct iio_dev *indio_dev) {}

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 3b1071deba00..93f187455461 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -1371,6 +1371,16 @@ void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev)
iio_free_chan_devattr_list(&buffer->scan_el_dev_attr_list);
}

+void iio_device_buffers_put(struct iio_dev *indio_dev)
+{
+ struct iio_buffer *buffer = indio_dev->buffer;
+
+ if (!buffer)
+ return;
+
+ iio_buffer_put(buffer);
+}
+
/**
* iio_validate_scan_mask_onehot() - Validates that exactly one channel is selected
* @indio_dev: the iio device
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 462d3e810013..32c489139cd2 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1481,7 +1481,7 @@ static void iio_dev_release(struct device *device)
iio_device_unregister_eventset(indio_dev);
iio_device_unregister_sysfs(indio_dev);

- iio_buffer_put(indio_dev->buffer);
+ iio_device_buffers_put(indio_dev);

ida_simple_remove(&iio_ida, indio_dev->id);
kfree(indio_dev);
--
2.17.1