pmdomain: xilinx/zynqmp: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20231124080623.564924-10-u.kleine-koenig@pengutronix.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/pmdomain/xilinx/zynqmp-pm-domains.c b/drivers/pmdomain/xilinx/zynqmp-pm-domains.c
index 69d03ad4cf1ef61a656fa8b5915ba08fd9d52b7e..6fd514286d82b6f36b4dd3d2a8b503247dcf49c8 100644 (file)
--- a/drivers/pmdomain/xilinx/zynqmp-pm-domains.c
+++ b/drivers/pmdomain/xilinx/zynqmp-pm-domains.c
@@ -293,11 +293,9 @@ static int zynqmp_gpd_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int zynqmp_gpd_remove(struct platform_device *pdev)
+static void zynqmp_gpd_remove(struct platform_device *pdev)
 {
        of_genpd_del_provider(pdev->dev.parent->of_node);
-
-       return 0;
 }
 
 static void zynqmp_gpd_sync_state(struct device *dev)
@@ -315,7 +313,7 @@ static struct platform_driver zynqmp_power_domain_driver = {
                .sync_state = zynqmp_gpd_sync_state,
        },
        .probe = zynqmp_gpd_probe,
-       .remove = zynqmp_gpd_remove,
+       .remove_new = zynqmp_gpd_remove,
 };
 module_platform_driver(zynqmp_power_domain_driver);