Re: [PATCH v4 1/2] device property: Add scoped fwnode child node iterators

Danilo Krummrich
2025-09-02T19:11:23Z

On 9/2/25 9:04 PM, Jean-François Lessard wrote:
> Add scoped versions of fwnode child node iterators that automatically
> handle reference counting cleanup using the __free() attribute:
>
> - fwnode_for_each_child_node_scoped()
> - fwnode_for_each_available_child_node_scoped()
>
> These macros follow the same pattern as existing scoped iterators in the
> kernel, ensuring fwnode references are automatically released when the
> iterator variable goes out of scope. This prevents resource leaks and
> eliminates the need for manual cleanup in error paths.
>
> The implementation mirrors the non-scoped variants but uses
> __free(fwnode_handle) for automatic resource management, providing a
> safer and more convenient interface for drivers iterating over firmware
> node children.
>
> Signed-off-by: Jean-François Lessard <jefflessard3@gmail.com>

Acked-by: Danilo Krummrich <dakr@kernel.org>