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authorIngo Molnar <mingo@elte.hu>2008-06-25 12:29:02 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-25 12:29:02 +0200
commit37f5d732f34fa099676b2c52b8a57bab01a011de (patch)
treecca207ab2009e8d5d2097602133d1a20de2b2e5c /drivers/hwmon/lm75.c
parented9e4996d9a123b7550e63713d563f524fa9d9f0 (diff)
parent543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff)
Merge branch 'linus' into tracing/sysproftip-tracing-sysprof-2008-06-25_10.29_Wed
Diffstat (limited to 'drivers/hwmon/lm75.c')
-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)
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;
}