On 26/08/2022 15:00:17+0800, Zhang Jianhua wrote: > - Use module_init instead of device_initcall. > - Add a function for module_exit to unregister driver. > I can see what you are doing but this doesn't explain why. Also, was this tested on any actual hardware? > Signed-off-by: Zhang Jianhua <chris.zjh@xxxxxxxxxx> > --- > drivers/rtc/rtc-fsl-ftm-alarm.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-ftm-alarm.c > index c0df49fb978c..28bdc6c97b64 100644 > --- a/drivers/rtc/rtc-fsl-ftm-alarm.c > +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c > @@ -332,7 +332,13 @@ static int __init ftm_alarm_init(void) > return platform_driver_register(&ftm_rtc_driver); > } > > -device_initcall(ftm_alarm_init); > +static void __exit ftm_alarm_exit(void) > +{ > + platform_driver_unregister(&ftm_rtc_driver); > +} > + > +module_init(ftm_alarm_init) > +module_exit(ftm_alarm_exit) > > MODULE_DESCRIPTION("NXP/Freescale FlexTimer alarm driver"); > MODULE_AUTHOR("Biwen Li <biwen.li@xxxxxxx>"); > -- > 2.31.0 > -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com