On Wed, Mar 15, 2023 at 04:05:39PM +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> > --- Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Thanks, Charles
diff --git a/sound/soc/codecs/cs47l92.c b/sound/soc/codecs/cs47l92.c index fe576d64e089..bc4d311d4778 100644 --- a/sound/soc/codecs/cs47l92.c +++ b/sound/soc/codecs/cs47l92.c @@ -2068,7 +2068,7 @@ static int cs47l92_probe(struct platform_device *pdev) return ret; } -static int cs47l92_remove(struct platform_device *pdev) +static void cs47l92_remove(struct platform_device *pdev) { struct cs47l92 *cs47l92 = platform_get_drvdata(pdev); @@ -2081,8 +2081,6 @@ static int cs47l92_remove(struct platform_device *pdev) madera_free_irq(cs47l92->core.madera, MADERA_IRQ_DSP_IRQ1, cs47l92); madera_core_free(&cs47l92->core); - - return 0; } static struct platform_driver cs47l92_codec_driver = { @@ -2090,7 +2088,7 @@ static struct platform_driver cs47l92_codec_driver = { .name = "cs47l92-codec", }, .probe = &cs47l92_probe, - .remove = &cs47l92_remove, + .remove_new = cs47l92_remove, }; module_platform_driver(cs47l92_codec_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> --- sound/soc/codecs/cs47l92.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)