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authorIngo Molnar <mingo@elte.hu>2008-07-10 08:17:14 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-10 08:17:14 +0200
commit9e4144abf8a30ae221311368bbb10690ebdb4b76 (patch)
tree032289d5b7d87976675c1a1a32d512a44d234fa2 /drivers/hwmon/lm75.c
parente17ba73b0ee6c0f24393c48b455e0d8db761782c (diff)
parent6329d3021bcfa9038621e6e917d98929421d8ec8 (diff)
Merge branch 'linus' into core/printk
Conflicts: kernel/printk.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 fa769690515..de698dc7302 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;
}