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Date:	Tue, 14 Oct 2014 15:21:31 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Hyogi Gim <ciogenis@...il.com>
Cc:	a.zummo@...ertech.it, john.stultz@...aro.org,
	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/rtc/interface.c: check the validation of
 rtc_time in __rtc_read_time

On Wed, 8 Oct 2014 11:05:29 +0900 Hyogi Gim <ciogenis@...il.com> 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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