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Subject[PATCH 04/17] rtc: pcf2127: return meaningful value for RTC_VL_READ
Date
PCF2127_BIT_CTRL3_BLF indicates the battery is low and needs to be replaced
soon.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
drivers/rtc/rtc-pcf2127.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c
index 5d8ea9ffd05b..5ac996578523 100644
--- a/drivers/rtc/rtc-pcf2127.c
+++ b/drivers/rtc/rtc-pcf2127.c
@@ -197,11 +197,9 @@ static int pcf2127_rtc_ioctl(struct device *dev,
if (ret)
return ret;

- touser = touser & PCF2127_BIT_CTRL3_BLF ? 1 : 0;
+ touser = touser & PCF2127_BIT_CTRL3_BLF ? RTC_VL_BACKUP_LOW : 0;

- if (copy_to_user((void __user *)arg, &touser, sizeof(int)))
- return -EFAULT;
- return 0;
+ return put_user(touser, (unsigned int __user *)arg);
default:
return -ENOIOCTLCMD;
}
--
2.23.0
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