Writing to fanX_div does not clear the cache. As a result, reading from fanX_div may return the old value for up to two seconds after writing a new value. This patch ensures the fad_div cache is updated in set_fan_div(). Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx> Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx> --- drivers/hwmon/adm1029.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c index 1cd11b3..8c5cdb560 100644 --- a/drivers/hwmon/adm1029.c +++ b/drivers/hwmon/adm1029.c @@ -242,6 +242,9 @@ static ssize_t set_fan_div(struct device *dev, /* Update the value */ reg = (reg & 0x3F) | (val << 6); + /* Update the cache */ + data->fan_div[attr->index] = reg; + /* Write value */ i2c_smbus_write_byte_data(client, ADM1029_REG_FAN_DIV[attr->index], reg); -- 1.9.1 _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
