diff mbox series

[61/97] usb: isp116x-hcd: Convert to platform remove callback returning void

Message ID 20230517230239.187727-62-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 00b92772800b6bfb3f5198c0975aa3b33c657250
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/isp116x-hcd.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 49ae01487af4..a82d8926e922 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -1526,14 +1526,14 @@  static const struct hc_driver isp116x_hc_driver = {
 
 /*----------------------------------------------------------------*/
 
-static int isp116x_remove(struct platform_device *pdev)
+static void isp116x_remove(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 	struct isp116x *isp116x;
 	struct resource *res;
 
 	if (!hcd)
-		return 0;
+		return;
 	isp116x = hcd_to_isp116x(hcd);
 	remove_debug_file(isp116x);
 	usb_remove_hcd(hcd);
@@ -1548,7 +1548,6 @@  static int isp116x_remove(struct platform_device *pdev)
 		release_mem_region(res->start, 2);
 
 	usb_put_hcd(hcd);
-	return 0;
 }
 
 static int isp116x_probe(struct platform_device *pdev)
@@ -1685,7 +1684,7 @@  MODULE_ALIAS("platform:isp116x-hcd");
 
 static struct platform_driver isp116x_driver = {
 	.probe = isp116x_probe,
-	.remove = isp116x_remove,
+	.remove_new = isp116x_remove,
 	.suspend = isp116x_suspend,
 	.resume = isp116x_resume,
 	.driver = {