[PATCH net-next 1/3] device property: Introduce fwnode_for_each_available_child_node_scoped()

From: Javier Carrasco
Date: Tue Oct 08 2024 - 12:11:01 EST


Introduce the scoped variant of the
fwnode_for_each_available_child_node() to automatically decrement the
child's refcount when it goes out of scope, removing the need for
explicit calls to fwnode_handle_put().

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
---
include/linux/property.h | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/include/linux/property.h b/include/linux/property.h
index 61fc20e5f81f..b37508ecf606 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -168,6 +168,11 @@ struct fwnode_handle *fwnode_get_next_available_child_node(
for (child = fwnode_get_next_available_child_node(fwnode, NULL); child;\
child = fwnode_get_next_available_child_node(fwnode, child))

+#define fwnode_for_each_available_child_node_scoped(fwnode, child) \
+ for (struct fwnode_handle *child __free(fwnode_handle) = \
+ fwnode_get_next_available_child_node(fwnode, NULL); child; \
+ child = fwnode_get_next_available_child_node(fwnode, child))
+
struct fwnode_handle *device_get_next_child_node(const struct device *dev,
struct fwnode_handle *child);


--
2.43.0