diff options
| author |   Adam Ward <adam.ward.opensource@diasemi.com> | 2015-04-16 12:45:29 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-17 09:04:00 -0400 |
| commit | ae824c484c85d77e3f272515aafb410bbade13fa (patch) | |
| tree | 5df73c406852ff69c14b238046e1b67ad97948b6 /drivers/rtc/rtc-da9052.c | |
| parent | drivers/rtc/rtc-da9052.c: add extra reads with timeouts to avoid returning partially updated values (diff) | |
| download | linux-dev-ae824c484c85d77e3f272515aafb410bbade13fa.tar.xz linux-dev-ae824c484c85d77e3f272515aafb410bbade13fa.zip | |
drivers/rtc/rtc-da9052.c: add constraints to set valid year
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>
Diffstat (limited to 'drivers/rtc/rtc-da9052.c')
| -rw-r--r-- | drivers/rtc/rtc-da9052.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-da9052.c b/drivers/rtc/rtc-da9052.c index ead02fad2de5..acc3e5a1f61a 100644 --- a/drivers/rtc/rtc-da9052.c +++ b/drivers/rtc/rtc-da9052.c @@ -206,6 +206,10 @@ static int da9052_rtc_set_time(struct device *dev, struct rtc_time *tm) uint8_t v[6]; 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); 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 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); if (ret < 0) return ret; |