linux-kernel - [PATCH 14/17] rtc: rv8803: avoid clearing RV8803_FLAG_V2F in RTC_VL

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Message-Id: <20191214220259.621996-15-alexandre.belloni@bootlin.com>
Date:   Sat, 14 Dec 2019 23:02:56 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     linux-rtc@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH 14/17] rtc: rv8803: avoid clearing RV8803_FLAG_V2F in RTC_VL_CLR

Stop clearing RV8803_FLAG_V2F in RTC_VL_CLR because it is a disservice to
userspace as it removes the important information that the RTC data is
invalid. This may lead userspace to set an invalid system time later on.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-rv8803.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index 4960f0a2b249..ed92116bdfa0 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -440,7 +440,7 @@ static int rv8803_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
 			return flags;
 		}
 
-		flags &= ~(RV8803_FLAG_V1F | RV8803_FLAG_V2F);
+		flags &= ~RV8803_FLAG_V1F;
 		ret = rv8803_write_reg(client, RV8803_FLAG, flags);
 		mutex_unlock(&rv8803->flags_lock);
 		if (ret)
-- 
2.23.0