| Message ID | 20230312161512.2715500-14-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 09:14:55) > 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 (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-pwm.c b/drivers/clk/clk-pwm.c index da2c8eddfd9f..3dd2b83d0404 100644 --- a/drivers/clk/clk-pwm.c +++ b/drivers/clk/clk-pwm.c @@ -129,11 +129,9 @@ static int clk_pwm_probe(struct platform_device *pdev) return of_clk_add_hw_provider(node, of_clk_hw_simple_get, &clk_pwm->hw); } -static int clk_pwm_remove(struct platform_device *pdev) +static void clk_pwm_remove(struct platform_device *pdev) { of_clk_del_provider(pdev->dev.of_node); - - return 0; } static const struct of_device_id clk_pwm_dt_ids[] = { @@ -144,7 +142,7 @@ MODULE_DEVICE_TABLE(of, clk_pwm_dt_ids); static struct platform_driver clk_pwm_driver = { .probe = clk_pwm_probe, - .remove = clk_pwm_remove, + .remove_new = clk_pwm_remove, .driver = { .name = "pwm-clock", .of_match_table = clk_pwm_dt_ids,
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-pwm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)