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")
Signed-off-by: Guanxin Li <bruceli20040604@gmail.com>
---
 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