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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-05-18 01:01:50 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-05-28 12:36:28 +0100
commit453fb0aaee9b5799ac6758fb0fe3ca91cc0d0148 (patch)
treed3e6083d888dc7f2339f282ece77baffc8292a50
parent1043c6ba7d746b630d33d876244345335243f781 (diff)
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usb: ehci-fsl: 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/20230517230239.187727-49-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/host/ehci-fsl.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index d74fa5ba845b..81d60a695510 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -684,7 +684,7 @@ static const struct ehci_driver_overrides ehci_fsl_overrides __initconst = {
*
* Reverses the effect of usb_hcd_fsl_probe().
*/
-static int fsl_ehci_drv_remove(struct platform_device *pdev)
+static void fsl_ehci_drv_remove(struct platform_device *pdev)
{
struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct usb_hcd *hcd = platform_get_drvdata(pdev);
@@ -703,13 +703,11 @@ static int fsl_ehci_drv_remove(struct platform_device *pdev)
if (pdata->exit)
pdata->exit(pdev);
usb_put_hcd(hcd);
-
- return 0;
}
static struct platform_driver ehci_fsl_driver = {
.probe = fsl_ehci_drv_probe,
- .remove = fsl_ehci_drv_remove,
+ .remove_new = fsl_ehci_drv_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = DRV_NAME,