diff options
Diffstat (limited to 'drivers/rtc/rtc-rv8803.c')
| -rw-r--r-- | drivers/rtc/rtc-rv8803.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c index 4960f0a2b249..93c3a6b627bd 100644 --- a/drivers/rtc/rtc-rv8803.c +++ b/drivers/rtc/rtc-rv8803.c @@ -411,6 +411,7 @@ static int rv8803_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) { struct i2c_client *client = to_i2c_client(dev); struct rv8803_data *rv8803 = dev_get_drvdata(dev); + unsigned int vl = 0; int flags, ret = 0; switch (cmd) { @@ -419,18 +420,15 @@ static int rv8803_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) if (flags < 0) return flags; - if (flags & RV8803_FLAG_V1F) + if (flags & RV8803_FLAG_V1F) { dev_warn(&client->dev, "Voltage low, temperature compensation stopped.\n"); + vl = RTC_VL_ACCURACY_LOW; + } if (flags & RV8803_FLAG_V2F) - dev_warn(&client->dev, "Voltage low, data loss detected.\n"); - - flags &= RV8803_FLAG_V1F | RV8803_FLAG_V2F; + vl |= RTC_VL_DATA_INVALID; - if (copy_to_user((void __user *)arg, &flags, sizeof(int))) - return -EFAULT; - - return 0; + return put_user(vl, (unsigned int __user *)arg); case RTC_VL_CLR: mutex_lock(&rv8803->flags_lock); @@ -440,7 +438,7 @@ static int rv8803_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) return flags; } - flags &= ~(RV8803_FLAG_V1F | RV8803_FLAG_V2F); + flags &= ~RV8803_FLAG_V1F; ret = rv8803_write_reg(client, RV8803_FLAG, flags); mutex_unlock(&rv8803->flags_lock); if (ret) |