RX8010_FLAG_VLF means the voltage dropped too low and data has been lost. Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> --- 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
