| Message ID | 20230312161512.2715500-24-u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | clk: Convert to platform remove callback returning void | expand |
On Sun, Mar 12, 2023 at 5:15 PM Uwe Kleine-König <u.kleine-koenig@pengutronix.de> wrote: > 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 (mostly) ignored > 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. > > 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: Geert Uytterhoeven <geert+renesas@glider.be> i.e. will queue in renesas-clk-for-v6.4. Gr{oetje,eeting}s, Geert
diff --git a/drivers/clk/renesas/rcar-usb2-clock-sel.c b/drivers/clk/renesas/rcar-usb2-clock-sel.c index 684d8937965e..17c110978e33 100644 --- a/drivers/clk/renesas/rcar-usb2-clock-sel.c +++ b/drivers/clk/renesas/rcar-usb2-clock-sel.c @@ -125,15 +125,13 @@ static int rcar_usb2_clock_sel_resume(struct device *dev) return 0; } -static int rcar_usb2_clock_sel_remove(struct platform_device *pdev) +static void rcar_usb2_clock_sel_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; of_clk_del_provider(dev->of_node); pm_runtime_put(dev); pm_runtime_disable(dev); - - return 0; } static int rcar_usb2_clock_sel_probe(struct platform_device *pdev) @@ -215,7 +213,7 @@ static struct platform_driver rcar_usb2_clock_sel_driver = { .pm = &rcar_usb2_clock_sel_pm_ops, }, .probe = rcar_usb2_clock_sel_probe, - .remove = rcar_usb2_clock_sel_remove, + .remove_new = rcar_usb2_clock_sel_remove, }; builtin_platform_driver(rcar_usb2_clock_sel_driver);
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 (mostly) ignored 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. 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/clk/renesas/rcar-usb2-clock-sel.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)