From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: linux-rtc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH 17/17] rtc: rx8010: return meaningful value for RTC_VL_READ
Date: Sat, 14 Dec 2019 23:02:59 +0100 [thread overview]
Message-ID: <20191214220259.621996-18-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20191214220259.621996-1-alexandre.belloni@bootlin.com>
RX8010_FLAG_VLF means the voltage dropped too low and data has been lost.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
drivers/rtc/rtc-rx8010.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/rtc/rtc-rx8010.c b/drivers/rtc/rtc-rx8010.c
index 9b106a26c64b..4021844bf2fa 100644
--- a/drivers/rtc/rtc-rx8010.c
+++ b/drivers/rtc/rtc-rx8010.c
@@ -399,11 +399,8 @@ static int rx8010_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
if (flagreg < 0)
return flagreg;
- tmp = !!(flagreg & RX8010_FLAG_VLF);
- if (copy_to_user((void __user *)arg, &tmp, sizeof(int)))
- return -EFAULT;
-
- return 0;
+ tmp = flagreg & RX8010_FLAG_VLF ? RTC_VL_DATA_INVALID : 0;
+ return put_user(tmp, (unsigned int __user *)arg);
default:
return -ENOIOCTLCMD;
--
2.23.0
prev parent reply other threads:[~2019-12-14 22:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-14 22:02 [PATCH 00/17] rtc: Unify RTC_VL_READ meaning Alexandre Belloni
2019-12-14 22:02 ` [PATCH 01/17] rtc: define RTC_VL_READ values Alexandre Belloni
2019-12-14 22:02 ` [PATCH 02/17] rtc: Document RTC_VL_READ and RTC_VL_CLR ioctls Alexandre Belloni
2019-12-14 22:02 ` [PATCH 03/17] rtc: abx80x: return meaningful value for RTC_VL_READ Alexandre Belloni
2019-12-14 22:02 ` [PATCH 04/17] rtc: pcf2127: " Alexandre Belloni
2019-12-14 22:02 ` [PATCH 05/17] rtc: pcf8523: " Alexandre Belloni
2019-12-14 22:02 ` [PATCH 06/17] rtc: pcf8563: remove RTC_VL_CLR handling Alexandre Belloni
2019-12-14 22:02 ` [PATCH 07/17] rtc: pcf8563: remove conditional compilation Alexandre Belloni
2019-12-14 22:02 ` [PATCH 08/17] rtc: pcf8563: stop caching voltage_low Alexandre Belloni
2019-12-14 22:02 ` [PATCH 09/17] rtc: pcf8563: return meaningful value for RTC_VL_READ Alexandre Belloni
2019-12-14 22:02 ` [PATCH 10/17] rtc: pcf85063: remove RTC_VL_CLR handling Alexandre Belloni
2019-12-14 22:02 ` [PATCH 11/17] rtc: pcf85063: return meaningful value for RTC_VL_READ Alexandre Belloni
2019-12-14 22:02 ` [PATCH 12/17] rtc: rv3028: remove RTC_VL_CLR handling Alexandre Belloni
2019-12-14 22:02 ` [PATCH 13/17] rtc: rv3028: return meaningful value for RTC_VL_READ Alexandre Belloni
2019-12-14 22:02 ` [PATCH 14/17] rtc: rv8803: avoid clearing RV8803_FLAG_V2F in RTC_VL_CLR Alexandre Belloni
2019-12-14 22:02 ` [PATCH 15/17] rtc: rv8803: return meaningful value for RTC_VL_READ Alexandre Belloni
2019-12-14 22:02 ` [PATCH 16/17] rtc: rx8010: remove RTC_VL_CLR handling Alexandre Belloni
2019-12-14 22:02 ` Alexandre Belloni [this message]
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