| Message ID | 20230712093322.37322-9-frank.li@vivo.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere, archived |
| Headers | show |
| Series | [01/19] cpufreq: sun50i: Convert to platform remove callback returning void | expand |
On 7/12/2023 11:33 AM, Yangtao Li 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. > > Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > Signed-off-by: Yangtao Li <frank.li@vivo.com> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
diff --git a/drivers/cpufreq/brcmstb-avs-cpufreq.c b/drivers/cpufreq/brcmstb-avs-cpufreq.c index ffea6402189d..1bdd513bcd19 100644 --- a/drivers/cpufreq/brcmstb-avs-cpufreq.c +++ b/drivers/cpufreq/brcmstb-avs-cpufreq.c @@ -749,13 +749,11 @@ static int brcm_avs_cpufreq_probe(struct platform_device *pdev) return ret; } -static int brcm_avs_cpufreq_remove(struct platform_device *pdev) +static void brcm_avs_cpufreq_remove(struct platform_device *pdev) { cpufreq_unregister_driver(&brcm_avs_driver); brcm_avs_prepare_uninit(pdev); - - return 0; } static const struct of_device_id brcm_avs_cpufreq_match[] = { @@ -770,7 +768,7 @@ static struct platform_driver brcm_avs_cpufreq_platdrv = { .of_match_table = brcm_avs_cpufreq_match, }, .probe = brcm_avs_cpufreq_probe, - .remove = brcm_avs_cpufreq_remove, + .remove_new = brcm_avs_cpufreq_remove, }; module_platform_driver(brcm_avs_cpufreq_platdrv);
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. Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Yangtao Li <frank.li@vivo.com> --- drivers/cpufreq/brcmstb-avs-cpufreq.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)