linux-kernel - Re: [PATCH] RTC/max6900: use rtc_valid_tm to check returning tm for max6900

Open Source and information security mailing list archives

Date:	Tue, 22 Jun 2010 17:41:57 +0800
From:	Wan ZongShun <mcuos.com@...il.com>
To:	Alessandro Zummo <a.zummo@...ertech.it>,
	Andrew Morton <akpm@...ux-foundation.org>,
	rtc-linux <rtc-linux@...glegroups.com>,
	LKML <linux-kernel@...r.kernel.org>, dale@...nsworth.org
Subject: Re: [PATCH] RTC/max6900: use rtc_valid_tm to check returning tm for 
	max6900

Signed-off-by: Wan ZongShun <mcuos.com@...il.com>

> Use rtc_valid_tm to check returning tm for max6900,
> it can avoid returning wrong tm value.
> ---
>  drivers/rtc/rtc-max6900.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/rtc/rtc-max6900.c b/drivers/rtc/rtc-max6900.c
> index a4f6665..486142c 100644
> --- a/drivers/rtc/rtc-max6900.c
> +++ b/drivers/rtc/rtc-max6900.c
> @@ -159,7 +159,7 @@ static int max6900_i2c_read_time(struct i2c_client *client, struct rtc_time *tm)
>                      bcd2bin(regs[MAX6900_REG_CENTURY]) * 100 - 1900;
>        tm->tm_wday = bcd2bin(regs[MAX6900_REG_DW]);
>
> -       return 0;
> +       return rtc_valid_tm(tm);
>  }
>
>  static int max6900_i2c_clear_write_protect(struct i2c_client *client)
> --
> 1.6.3.3
>


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