Commit 8049c113 authored by Alexandre Belloni's avatar Alexandre Belloni
Browse files

rtc: rx8010: return meaningful value for RTC_VL_READ 

RX8010_FLAG_VLF means the voltage dropped too low and data has been lost.

Link: https://lore.kernel.org/r/20191214220259.621996-18-alexandre.belloni@bootlin.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 894b0432

drivers/rtc/rtc-rx8010.c

+2 −5
Original line number Diff line number Diff line
@@ -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;