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-rw-r--r--drivers/hwmon/lm75.c20
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)
251 the SMBus standard. */ 251 the SMBus standard. */
252static int lm75_read_value(struct i2c_client *client, u8 reg) 252static int lm75_read_value(struct i2c_client *client, u8 reg)
253{ 253{
254 int value;
255
254 if (reg == LM75_REG_CONF) 256 if (reg == LM75_REG_CONF)
255 return i2c_smbus_read_byte_data(client, reg); 257 return i2c_smbus_read_byte_data(client, reg);
256 else 258
257 return swab16(i2c_smbus_read_word_data(client, reg)); 259 value = i2c_smbus_read_word_data(client, reg);
260 return (value < 0) ? value : swab16(value);
258} 261}
259 262
260static int lm75_write_value(struct i2c_client *client, u8 reg, u16 value) 263static 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)
287 int i; 290 int i;
288 dev_dbg(&client->dev, "Starting lm75 update\n"); 291 dev_dbg(&client->dev, "Starting lm75 update\n");
289 292
290 for (i = 0; i < ARRAY_SIZE(data->temp); i++) 293 for (i = 0; i < ARRAY_SIZE(data->temp); i++) {
291 data->temp[i] = lm75_read_value(client, 294 int status;
292 LM75_REG_TEMP[i]); 295
296 status = lm75_read_value(client, LM75_REG_TEMP[i]);
297 if (status < 0)
298 dev_dbg(&client->dev, "reg %d, err %d\n",
299 LM75_REG_TEMP[i], status);
300 else
301 data->temp[i] = status;
302 }
293 data->last_updated = jiffies; 303 data->last_updated = jiffies;
294 data->valid = 1; 304 data->valid = 1;
295 } 305 }