From: Huang, Tao <huangtao@rock-chips.com>
Date: Thu, 12 Mar 2015 07:48:12 +0000 (+0800)
Subject: rtc: HYM8563: don't call rtc_year_days
X-Git-Tag: firefly_0821_release~4158^2~370
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=9a742e52b1784553b3932eae8970bf96c26e8402;p=firefly-linux-kernel-4.4.55.git

rtc: HYM8563: don't call rtc_year_days

If i2c error, the driver may call rtc_year_days with month -1, which will
cause crash. Fix this by never call rtc_year_days at all.

Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
---

diff --git a/drivers/rtc/rtc-HYM8563.c b/drivers/rtc/rtc-HYM8563.c
index c20f4b867bfe..056bd3e050d5 100755
--- a/drivers/rtc/rtc-HYM8563.c
+++ b/drivers/rtc/rtc-HYM8563.c
@@ -227,7 +227,6 @@ static int hym8563_read_datetime(struct i2c_client *client, struct rtc_time *tm)
 	else
 		tm->tm_year += 2000;
 		
-	tm->tm_yday = rtc_year_days(tm->tm_mday, tm->tm_mon, tm->tm_year);	
 	tm->tm_year -= 1900;			//inorder to cooperate the systerm time	
 	if(tm->tm_year < 0)
 		tm->tm_year = 0;