net: stmmac: dwmac-stm32: 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 (mostly) ignored
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.

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

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
index 0616b3a04ff3922ef5538c0c3f60e79611423112..bdb4de59a67274db0b000ef0cbbb0a29d3ba76ae 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c
@@ -417,7 +417,7 @@ err_remove_config_dt:
        return ret;
 }
 
-static int stm32_dwmac_remove(struct platform_device *pdev)
+static void stm32_dwmac_remove(struct platform_device *pdev)
 {
        struct net_device *ndev = platform_get_drvdata(pdev);
        struct stmmac_priv *priv = netdev_priv(ndev);
@@ -431,8 +431,6 @@ static int stm32_dwmac_remove(struct platform_device *pdev)
                dev_pm_clear_wake_irq(&pdev->dev);
                device_init_wakeup(&pdev->dev, false);
        }
-
-       return 0;
 }
 
 static int stm32mp1_suspend(struct stm32_dwmac *dwmac)
@@ -528,7 +526,7 @@ MODULE_DEVICE_TABLE(of, stm32_dwmac_match);
 
 static struct platform_driver stm32_dwmac_driver = {
        .probe  = stm32_dwmac_probe,
-       .remove = stm32_dwmac_remove,
+       .remove_new = stm32_dwmac_remove,
        .driver = {
                .name           = "stm32-dwmac",
                .pm             = &stm32_dwmac_pm_ops,