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authorLinus Torvalds <torvalds@linux-foundation.org>2008-06-21 12:31:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-06-21 12:31:32 -0700
commitbec95aab8c056ab490fe7fa54da822938562443d (patch)
tree597856476547811928a6d053f9e050045c613d38 /drivers/hwmon/lm75.c
parent71c2742f5e6348d76ee62085cf0a13e5eff0f00e (diff)
parentbcccc3a28e9cbb44549cde326852c26203a53a56 (diff)
Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: hwmon: (lm75) sensor reading bugfix hwmon: (abituguru3) update driver detection hwmon: (w83791d) new maintainer hwmon: (abituguru3) Identify Abit AW8D board as such hwmon: Update the sysfs interface documentation hwmon: (adt7473) Initialize max_duty_at_overheat before use hwmon: (lm85) Fix function RANGE_TO_REG()
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;
}