On Wed, Mar 15, 2023 at 04:06:37PM +0100, Uwe Kleine-König 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: Andrew Lunn <andrew@lunn.ch> Andrew
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c index afdf7d61e4c5..d1eb90310afa 100644 --- a/sound/soc/kirkwood/kirkwood-i2s.c +++ b/sound/soc/kirkwood/kirkwood-i2s.c @@ -736,7 +736,7 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev) return err; } -static int kirkwood_i2s_dev_remove(struct platform_device *pdev) +static void kirkwood_i2s_dev_remove(struct platform_device *pdev) { struct kirkwood_dma_data *priv = dev_get_drvdata(&pdev->dev); @@ -744,8 +744,6 @@ static int kirkwood_i2s_dev_remove(struct platform_device *pdev) if (!IS_ERR(priv->extclk)) clk_disable_unprepare(priv->extclk); clk_disable_unprepare(priv->clk); - - return 0; } #ifdef CONFIG_OF @@ -761,7 +759,7 @@ MODULE_DEVICE_TABLE(of, mvebu_audio_of_match); static struct platform_driver kirkwood_i2s_driver = { .probe = kirkwood_i2s_dev_probe, - .remove = kirkwood_i2s_dev_remove, + .remove_new = kirkwood_i2s_dev_remove, .driver = { .name = DRV_NAME, .of_match_table = of_match_ptr(mvebu_audio_of_match),
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> --- sound/soc/kirkwood/kirkwood-i2s.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)