rtc/m48t86: use rtc_valid_tm() to check returned tm
Use rtc_valid_tm() to check the returned struct rtc_time *tm, to avoid
returning a wrong tm value.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: Paul Gortmaker <p_gortmaker@yahoo.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>
diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c
index 7c045cf..f981287 100644
--- a/drivers/rtc/rtc-m48t86.c
+++ b/drivers/rtc/rtc-m48t86.c
@@ -77,7 +77,7 @@
if (ops->readbyte(M48T86_REG_HOUR) & 0x80)
tm->tm_hour += 12;
- return 0;
+ return rtc_valid_tm(tm);
}
static int m48t86_rtc_set_time(struct device *dev, struct rtc_time *tm)