From: Wan ZongShun <mcuos.com@gmail.com>
Date: Wed, 11 Aug 2010 01:02:07 +0000 (-0700)
Subject: rtc/nuc900: fix checking of args during time-setting
X-Git-Tag: v2.6.36-rc1~216
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=70d2a0bae26c7c44641785d9def8a0d9048abbea;p=pandora-kernel.git

rtc/nuc900: fix checking of args during time-setting

When a user application wants to set the rtc time, the RTC subsystem takes
advantage of 'rtc_valid_tm(tm)' to check 'rtc_time *tm' value validity, it
make sure the 'tm->tm_year' is larger than 70,so if '70< tm_year < 100',
the '(settm->tm_year - 100)' will be negative.  ' Setting the negative
value to hardware register will be invalid, so I add the 'if' condition to
make sure set a valid value to register.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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