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Subject[PATCH v2 3/4] drivers/rtc/isl1208: Replace deprecated rtc_tm_to_time()
Date
From: Xunlei Pang <pang.xunlei@linaro.org>

isl1208_i2c_set_alarm() uses deprecated rtc_tm_to_time(),
which will overflow in year 2106 on 32-bit machines.

This patch solves this by:
- Replacing rtc_tm_to_time() with rtc_tm_subtract()

Cc: Herbert Valerio Riedel <hvr@gnu.org>
Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org>
---
drivers/rtc/rtc-isl1208.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index c3c549d..6eb5d36 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -370,22 +370,15 @@ isl1208_i2c_set_alarm(struct i2c_client *client, struct rtc_wkalrm *alarm)
struct rtc_time *alarm_tm = &alarm->time;
u8 regs[ISL1208_ALARM_SECTION_LEN] = { 0, };
const int offs = ISL1208_REG_SCA;
- unsigned long rtc_secs, alarm_secs;
struct rtc_time rtc_tm;
int err, enable;

err = isl1208_i2c_read_time(client, &rtc_tm);
if (err)
return err;
- err = rtc_tm_to_time(&rtc_tm, &rtc_secs);
- if (err)
- return err;
- err = rtc_tm_to_time(alarm_tm, &alarm_secs);
- if (err)
- return err;

/* If the alarm time is before the current time disable the alarm */
- if (!alarm->enabled || alarm_secs <= rtc_secs)
+ if (!alarm->enabled || rtc_tm_subtract(alarm_tm, &rtc_tm) <= 0)
enable = 0x00;
else
enable = 0x80;
--
1.9.1



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