diff mbox series

[84/97] usb: xhci-tegra: Convert to platform remove callback returning void

Message ID 20230517230239.187727-85-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 40f7b7f65a0584821a8fa4abb1c64fb2ba79aebf
Headers show
Series usb: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König May 17, 2023, 11:02 p.m. UTC
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>
---
 drivers/usb/host/xhci-tegra.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index c75d93244143..a36df04b9513 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -1909,7 +1909,7 @@  static int tegra_xusb_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int tegra_xusb_remove(struct platform_device *pdev)
+static void tegra_xusb_remove(struct platform_device *pdev)
 {
 	struct tegra_xusb *tegra = platform_get_drvdata(pdev);
 	struct xhci_hcd *xhci = hcd_to_xhci(tegra->hcd);
@@ -1939,8 +1939,6 @@  static int tegra_xusb_remove(struct platform_device *pdev)
 	tegra_xusb_clk_disable(tegra);
 	regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
 	tegra_xusb_padctl_put(tegra->padctl);
-
-	return 0;
 }
 
 static bool xhci_hub_ports_suspended(struct xhci_hub *hub)
@@ -2650,7 +2648,7 @@  MODULE_DEVICE_TABLE(of, tegra_xusb_of_match);
 
 static struct platform_driver tegra_xusb_driver = {
 	.probe = tegra_xusb_probe,
-	.remove = tegra_xusb_remove,
+	.remove_new = tegra_xusb_remove,
 	.driver = {
 		.name = "tegra-xusb",
 		.pm = &tegra_xusb_pm_ops,