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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-05-18 01:01:45 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-05-28 12:36:27 +0100
commit48c125b55aa29ba55b9331add94f55b5d7b4c2dc (patch)
tree96e7fa1423a04265337136ac12e40f1409ddc049
parentdad23c87a48e844dca18445b7e1677e4ce25d6fc (diff)
usb: gadget/tegra-xudc: 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 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> Link: https://lore.kernel.org/r/20230517230239.187727-44-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/gadget/udc/tegra-xudc.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c
index 34e9c1df54c7..83eaa65ddde3 100644
--- a/drivers/usb/gadget/udc/tegra-xudc.c
+++ b/drivers/usb/gadget/udc/tegra-xudc.c
@@ -3906,7 +3906,7 @@ put_padctl:
return err;
}
-static int tegra_xudc_remove(struct platform_device *pdev)
+static void tegra_xudc_remove(struct platform_device *pdev)
{
struct tegra_xudc *xudc = platform_get_drvdata(pdev);
unsigned int i;
@@ -3936,8 +3936,6 @@ static int tegra_xudc_remove(struct platform_device *pdev)
pm_runtime_put(xudc->dev);
tegra_xusb_padctl_put(xudc->padctl);
-
- return 0;
}
static int __maybe_unused tegra_xudc_powergate(struct tegra_xudc *xudc)
@@ -4063,7 +4061,7 @@ static const struct dev_pm_ops tegra_xudc_pm_ops = {
static struct platform_driver tegra_xudc_driver = {
.probe = tegra_xudc_probe,
- .remove = tegra_xudc_remove,
+ .remove_new = tegra_xudc_remove,
.driver = {
.name = "tegra-xudc",
.pm = &tegra_xudc_pm_ops,