5.15-stable review patch. If anyone has any objections, please let me know.
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From: Uwe Kleine-König u.kleine-koenig@pengutronix.de
[ Upstream commit 456a91ce7de4b9157fd5013c1e4dd8dd3c6daccb ]
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 Reviewed-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Link: https://lore.kernel.org/r/20230517230239.187727-89-u.kleine-koenig@pengutron... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Stable-dep-of: eb9ac779830b ("usb: renesas_usbhs: Fix synchronous external abort on unbind") Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/renesas_usbhs/common.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -794,7 +794,7 @@ probe_pm_disable: return ret; }
-static int usbhs_remove(struct platform_device *pdev) +static void usbhs_remove(struct platform_device *pdev) { struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
@@ -814,8 +814,6 @@ static int usbhs_remove(struct platform_ usbhs_mod_remove(priv); usbhs_fifo_remove(priv); usbhs_pipe_remove(priv); - - return 0; }
static __maybe_unused int usbhsc_suspend(struct device *dev) @@ -860,7 +858,7 @@ static struct platform_driver renesas_us .of_match_table = of_match_ptr(usbhs_of_match), }, .probe = usbhs_probe, - .remove = usbhs_remove, + .remove_new = usbhs_remove, };
module_platform_driver(renesas_usbhs_driver);