Re: [PATCH] fpga: region: depopulate child devices on remove

[Xu Yilun]

On Mon, Sep 28, 2026 at 09:15:51AM +0800, Guanxin Li wrote:
> of_fpga_region_probe() populates child platform devices under the FPGA
> region using of_platform_populate(), but the remove path does not
> depopulate them before unregistering the region.
> 
> Call of_platform_depopulate() before unregistering the FPGA region so
> that the child devices are properly unregistered and their references
> are released.
> 
> Fixes: 0fa20cdfcc1f ("fpga: fpga-region: device tree control for FPGA")

Does it need to get backport into stable tree?

> Signed-off-by: Guanxin Li <bruceli20040604@xxxxxxxxx>
> ---
>  drivers/fpga/of-fpga-region.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/fpga/of-fpga-region.c b/drivers/fpga/of-fpga-region.c
> index 9107a5b461d3..fd3f81db0385 100644
> --- a/drivers/fpga/of-fpga-region.c
> +++ b/drivers/fpga/of-fpga-region.c
> @@ -429,6 +429,7 @@ static void of_fpga_region_remove(struct platform_device *pdev)
>  	struct fpga_region *region = platform_get_drvdata(pdev);
>  	struct fpga_manager *mgr = region->mgr;
>  
> +	of_platform_depopulate(&region->dev);
>  	fpga_region_unregister(region);
>  	fpga_mgr_put(mgr);
>  }
> -- 
> 2.43.0
> 
>