Commit 9f05342a authored by Alexandre Belloni's avatar Alexandre Belloni
Browse files

rtc: abx80x: return meaningful value for RTC_VL_READ 

ABX8XX_STATUS_BLF indicates the battery is low and needs to be replaced
soon.

Link: https://lore.kernel.org/r/20191214220259.621996-4-alexandre.belloni@bootlin.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 790a19f1

drivers/rtc/rtc-abx80x.c

+2 −5
Original line number Diff line number Diff line
@@ -523,12 +523,9 @@ static int abx80x_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) 
		if (status < 0)

			return status;



		tmp = !!(status & ABX8XX_STATUS_BLF);

		tmp = status & ABX8XX_STATUS_BLF ? RTC_VL_BACKUP_LOW : 0;



		if (copy_to_user((void __user *)arg, &tmp, sizeof(int)))

			return -EFAULT;



		return 0;

		return put_user(tmp, (unsigned int __user *)arg);



	case RTC_VL_CLR:

		status = i2c_smbus_read_byte_data(client, ABX8XX_REG_STATUS);