Re: [PATCH] drivers/rtc/interface.c: check the validation of rtc_time in __rtc_read_time

From: Andrew Morton
Date: Tue Oct 14 2014 - 18:21:36 EST

On Wed, 8 Oct 2014 11:05:29 +0900 Hyogi Gim <ciogenis@xxxxxxxxx> wrote:

> Some of rtc devices always return '0' when rtc_class_ops.read_time is called.
> So if rtc_time isn't verified in callback, rtc interface cannot know whether
> rtc_time is valid.

We should fix the buggy .read_time() implementations...

> Check rtc_time by using 'rtc_valid_tm' in '__rtc_read_time'. And add the
> message for debugging.

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