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drivers/rtc/rtc-da9052.c: add constraints to set valid year

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Signed-off-by: Adam Ward <adam.ward.opensource@diasemi.com>
Tested-by: Adam Ward <adam.ward.opensource@diasemi.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>
This commit is contained in:
Adam Ward 2015-04-16 12:45:29 -07:00 committed by Linus Torvalds
parent 03cc1625e1
commit ae824c484c
1 changed files with 8 additions and 0 deletions
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8
drivers/rtc/rtc-da9052.c
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@ -206,6 +206,10 @@ static int da9052_rtc_set_time(struct device *dev, struct rtc_time *tm)
uint8_t v[6]; uint8_t v[6];
int ret; int ret;
/* DA9052 only has 6 bits for year - to represent 2000-2063 */
if ((tm->tm_year < 100) || (tm->tm_year > 163))
return -EINVAL;
rtc = dev_get_drvdata(dev); rtc = dev_get_drvdata(dev);
v[0] = tm->tm_sec; v[0] = tm->tm_sec;
@ -243,6 +247,10 @@ static int da9052_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
struct rtc_time *tm = &alrm->time; struct rtc_time *tm = &alrm->time;
struct da9052_rtc *rtc = dev_get_drvdata(dev); struct da9052_rtc *rtc = dev_get_drvdata(dev);
/* DA9052 only has 6 bits for year - to represent 2000-2063 */
if ((tm->tm_year < 100) || (tm->tm_year > 163))
return -EINVAL;
ret = da9052_rtc_enable_alarm(rtc, 0); ret = da9052_rtc_enable_alarm(rtc, 0);
if (ret < 0) if (ret < 0)
return ret; return ret;