linux-kernel - [PATCH] rtc: mv: let the core handle invalid alarms

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Date:   Tue,  2 Oct 2018 00:05:25 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     linux-rtc@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Gregory Clement <gregory.clement@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH] rtc: mv: let the core handle invalid alarms

Instead of lying to the core when the alarm is invalid, let it handle that
by returning the error.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-mv.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c
index 4b198b3778d3..e7f14bd12fe3 100644
--- a/drivers/rtc/rtc-mv.c
+++ b/drivers/rtc/rtc-mv.c
@@ -125,13 +125,9 @@ static int mv_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
 	/* hw counts from year 2000, but tm_year is relative to 1900 */
 	alm->time.tm_year = bcd2bin(year) + 100;
 
-	if (rtc_valid_tm(&alm->time) < 0) {
-		dev_err(dev, "retrieved alarm date/time is not valid.\n");
-		rtc_time_to_tm(0, &alm->time);
-	}
-
 	alm->enabled = !!readl(ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS);
-	return 0;
+
+	return rtc_valid_tm(&alm->time);
 }
 
 static int mv_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
-- 
2.19.0