diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwmon/pmbus/pmbus_core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index ef7ee90ee785..48c2d5ae42a6 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -1942,11 +1942,14 @@ static ssize_t pmbus_set_samples(struct device *dev, long val; struct i2c_client *client = to_i2c_client(dev->parent); struct pmbus_samples_reg *reg = to_samples_reg(devattr); + struct pmbus_data *data = i2c_get_clientdata(client); if (kstrtol(buf, 0, &val) < 0) return -EINVAL; + mutex_lock(&data->update_lock); ret = _pmbus_write_word_data(client, reg->page, reg->attr->reg, val); + mutex_unlock(&data->update_lock); return ret ? : count; } |