rtc/max6900: use rtc_valid_tm() to check returning tm
Wan ZongShun [Wed, 11 Aug 2010 01:02:16 +0000 (18:02 -0700)]
Use rtc_valid_tm() to check returning tm for max6900, it can avoid
returning wrong tm value.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Dale Farnsworth <dale@farnsworth.org>
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>

drivers/rtc/rtc-max6900.c

index a4f6665..486142c 100644 (file)
@@ -159,7 +159,7 @@ static int max6900_i2c_read_time(struct i2c_client *client, struct rtc_time *tm)
                      bcd2bin(regs[MAX6900_REG_CENTURY]) * 100 - 1900;
        tm->tm_wday = bcd2bin(regs[MAX6900_REG_DW]);
 
-       return 0;
+       return rtc_valid_tm(tm);
 }
 
 static int max6900_i2c_clear_write_protect(struct i2c_client *client)