Re: [PATCH] rtc: mc146818-lib: fix signedness bug in mc146818_get_time()

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W dniu 11.01.2022 o 08:19, Dan Carpenter pisze:
> The mc146818_get_time() function returns zero on success or negative
> a error code on failure.  It needs to be type int.
>
> Fixes: d35786b3a28d ("rtc: mc146818-lib: change return values of mc146818_get_time()")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Indeed, thanks for spotting this.

Reviewed-by: Mateusz Jończyk <mat.jonczyk@xxxxx>

> ---
>  include/linux/mc146818rtc.h                    | 2 +-
>  drivers/rtc/rtc-mc146818-lib.c                 | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
> index 67fb0a12becc..808bb4cee230 100644
> --- a/include/linux/mc146818rtc.h
> +++ b/include/linux/mc146818rtc.h
> @@ -124,7 +124,7 @@ struct cmos_rtc_board_info {
>  #endif /* ARCH_RTC_LOCATION */
>  
>  bool mc146818_does_rtc_work(void);
> -unsigned int mc146818_get_time(struct rtc_time *time);
> +int mc146818_get_time(struct rtc_time *time);
>  int mc146818_set_time(struct rtc_time *time);
>  
>  bool mc146818_avoid_UIP(void (*callback)(unsigned char seconds, void *param),
> diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c
> index f62e658cbe23..7f689f1bafc5 100644
> --- a/drivers/rtc/rtc-mc146818-lib.c
> +++ b/drivers/rtc/rtc-mc146818-lib.c
> @@ -130,7 +130,7 @@ static void mc146818_get_time_callback(unsigned char seconds, void *param_in)
>  	p->ctrl = CMOS_READ(RTC_CONTROL);
>  }
>  
> -unsigned int mc146818_get_time(struct rtc_time *time)
> +int mc146818_get_time(struct rtc_time *time)
>  {
>  	struct mc146818_get_time_callback_param p = {
>  		.time = time





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