From: Uwe Kleine-König Date: Mon, 18 Sep 2023 20:42:04 +0000 (+0200) Subject: net: ethernet: micrel: Convert to platform remove callback returning void X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=bae04ae2be07a714c9f37f92f4119578b68ec3aa;p=linux.git net: ethernet: micrel: 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() is renamed to .remove(). Trivially convert these drivers from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/micrel/ks8842.c b/drivers/net/ethernet/micrel/ks8842.c index c11b118dc4158..ddd87ef71caf7 100644 --- a/drivers/net/ethernet/micrel/ks8842.c +++ b/drivers/net/ethernet/micrel/ks8842.c @@ -1228,7 +1228,7 @@ err_mem_region: return err; } -static int ks8842_remove(struct platform_device *pdev) +static void ks8842_remove(struct platform_device *pdev) { struct net_device *netdev = platform_get_drvdata(pdev); struct ks8842_adapter *adapter = netdev_priv(netdev); @@ -1239,7 +1239,6 @@ static int ks8842_remove(struct platform_device *pdev) iounmap(adapter->hw_addr); free_netdev(netdev); release_mem_region(iomem->start, resource_size(iomem)); - return 0; } @@ -1248,7 +1247,7 @@ static struct platform_driver ks8842_platform_driver = { .name = DRV_NAME, }, .probe = ks8842_probe, - .remove = ks8842_remove, + .remove_new = ks8842_remove, }; module_platform_driver(ks8842_platform_driver); diff --git a/drivers/net/ethernet/micrel/ks8851_par.c b/drivers/net/ethernet/micrel/ks8851_par.c index 7f49042484bdc..2a7f298542670 100644 --- a/drivers/net/ethernet/micrel/ks8851_par.c +++ b/drivers/net/ethernet/micrel/ks8851_par.c @@ -327,11 +327,9 @@ static int ks8851_probe_par(struct platform_device *pdev) return ks8851_probe_common(netdev, dev, msg_enable); } -static int ks8851_remove_par(struct platform_device *pdev) +static void ks8851_remove_par(struct platform_device *pdev) { ks8851_remove_common(&pdev->dev); - - return 0; } static const struct of_device_id ks8851_match_table[] = { @@ -347,7 +345,7 @@ static struct platform_driver ks8851_driver = { .pm = &ks8851_pm_ops, }, .probe = ks8851_probe_par, - .remove = ks8851_remove_par, + .remove_new = ks8851_remove_par, }; module_platform_driver(ks8851_driver);