| Message ID | 20230312161512.2715500-11-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 (2023-03-12 09:14:52) > 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> > --- Applied to clk-next
diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c index 7d775954e26d..3481eb8cdeb3 100644 --- a/drivers/clk/clk-fixed-rate.c +++ b/drivers/clk/clk-fixed-rate.c @@ -196,14 +196,12 @@ void __init of_fixed_clk_setup(struct device_node *node) } CLK_OF_DECLARE(fixed_clk, "fixed-clock", of_fixed_clk_setup); -static int of_fixed_clk_remove(struct platform_device *pdev) +static void of_fixed_clk_remove(struct platform_device *pdev) { struct clk_hw *hw = platform_get_drvdata(pdev); of_clk_del_provider(pdev->dev.of_node); clk_hw_unregister_fixed_rate(hw); - - return 0; } static int of_fixed_clk_probe(struct platform_device *pdev) @@ -234,7 +232,7 @@ static struct platform_driver of_fixed_clk_driver = { .of_match_table = of_fixed_clk_ids, }, .probe = of_fixed_clk_probe, - .remove = of_fixed_clk_remove, + .remove_new = of_fixed_clk_remove, }; builtin_platform_driver(of_fixed_clk_driver); #endif
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/clk-fixed-rate.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)