Re: [PATCH 1/6] MIPS: irixelf: fix test unsigned var < 0

From: Roel Kluin
Date: Wed Apr 16 2008 - 11:28:17 EST


New_alarm is unsigned so the test didn't work.

Signed-off-by: Roel Kluin <12o3l@xxxxxxxxxx>
---
diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index 45bda18..119bdc9 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -216,16 +216,16 @@ static int ds1374_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
rtc_tm_to_time(&alarm->time, &new_alarm);
rtc_tm_to_time(&now, &itime);

- new_alarm -= itime;
-
/* This can happen due to races, in addition to dates that are
* truly in the past. To avoid requiring the caller to check for
* races, dates in the past are assumed to be in the recent past
* (i.e. not something that we'd rather the caller know about via
* an error), and the alarm is set to go off as soon as possible.
*/
- if (new_alarm <= 0)
+ if (new_alarm <= itime)
new_alarm = 1;
+ else
+ new_alarm -= itime;

mutex_lock(&ds1374->mutex);


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