diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-06-23 11:29:11 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-23 11:29:11 +0200 |
| commit | 1e74f9cbbba5348a6c58988cce0f19d6ef887cc8 (patch) | |
| tree | 47fcfdba6a17a02cf6745146ebb2ae435405ab1a /drivers/hwmon/lm75.c | |
| parent | 31a72bce0bd6f3e0114009288bccbc96376eeeca (diff) | |
| parent | 481c5346d0981940ee63037eb53e4e37b0735c10 (diff) | |
Merge branch 'linus' into core/rcutip-core-rcu-2008-06-23_09.29_Mon
Diffstat (limited to 'drivers/hwmon/lm75.c')
| -rw-r--r-- | drivers/hwmon/lm75.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index fa7696905154..de698dc73020 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -251,10 +251,13 @@ static int lm75_detach_client(struct i2c_client *client) the SMBus standard. */ static int lm75_read_value(struct i2c_client *client, u8 reg) { + int value; + if (reg == LM75_REG_CONF) return i2c_smbus_read_byte_data(client, reg); - else - return swab16(i2c_smbus_read_word_data(client, reg)); + + value = i2c_smbus_read_word_data(client, reg); + return (value < 0) ? value : swab16(value); } static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value) @@ -287,9 +290,16 @@ static struct lm75_data *lm75_update_device(struct device *dev) int i; dev_dbg(&client->dev, "Starting lm75 update\n"); - for (i = 0; i < ARRAY_SIZE(data->temp); i++) - data->temp[i] = lm75_read_value(client, - LM75_REG_TEMP[i]); + for (i = 0; i < ARRAY_SIZE(data->temp); i++) { + int status; + + status = lm75_read_value(client, LM75_REG_TEMP[i]); + if (status < 0) + dev_dbg(&client->dev, "reg %d, err %d\n", + LM75_REG_TEMP[i], status); + else + data->temp[i] = status; + } data->last_updated = jiffies; data->valid = 1; } |