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: Alexandre Belloni <alexandre.belloni@bootlin.com>
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@ -523,12 +523,9 @@ static int abx80x_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
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if (status < 0)
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return status;
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tmp = !!(status & ABX8XX_STATUS_BLF);
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tmp = status & ABX8XX_STATUS_BLF ? RTC_VL_BACKUP_LOW : 0;
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if (copy_to_user((void __user *)arg, &tmp, sizeof(int)))
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return -EFAULT;
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return 0;
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return put_user(tmp, (unsigned int __user *)arg);
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case RTC_VL_CLR:
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status = i2c_smbus_read_byte_data(client, ABX8XX_REG_STATUS);
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