| Message ID | ba373ce7341518216a4940e76ce61d759b912b3d.1709721042.git.u.kleine-koenig@pengutronix.de (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
| Series | clk: Convert to platform remove callback returning void | expand |
Quoting Uwe Kleine-König (2024-03-06 02:38:55) > 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() will be 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> > --- Applied to clk-next
diff --git a/drivers/clk/imx/clk-imx8-acm.c b/drivers/clk/imx/clk-imx8-acm.c index f68877eef873..1bdb480cc96c 100644 --- a/drivers/clk/imx/clk-imx8-acm.c +++ b/drivers/clk/imx/clk-imx8-acm.c @@ -394,15 +394,13 @@ static int imx8_acm_clk_probe(struct platform_device *pdev) return ret; } -static int imx8_acm_clk_remove(struct platform_device *pdev) +static void imx8_acm_clk_remove(struct platform_device *pdev) { struct imx8_acm_priv *priv = dev_get_drvdata(&pdev->dev); pm_runtime_disable(&pdev->dev); clk_imx_acm_detach_pm_domains(&pdev->dev, &priv->dev_pm); - - return 0; } static const struct imx8_acm_soc_data imx8qm_acm_data = { @@ -470,7 +468,7 @@ static struct platform_driver imx8_acm_clk_driver = { .pm = &imx8_acm_pm_ops, }, .probe = imx8_acm_clk_probe, - .remove = imx8_acm_clk_remove, + .remove_new = imx8_acm_clk_remove, }; module_platform_driver(imx8_acm_clk_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 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() will be 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/clk/imx/clk-imx8-acm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)