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authorIngo Molnar <mingo@elte.hu>2008-07-08 10:32:56 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-08 10:32:56 +0200
commit896395c290f902576270d84291c1f7f8bfbe339d (patch)
tree650114bff3a5f808ee1d713ecc443b0eaab2e1c3 /drivers/hwmon/lm75.c
parentaf1cf204ba2fd8135933a2e4df523fb1112dc0e2 (diff)
parent1b40a895df6c7d5a80e71f65674060b03d84bbef (diff)
downloadop-kernel-dev-896395c290f902576270d84291c1f7f8bfbe339d.zip
op-kernel-dev-896395c290f902576270d84291c1f7f8bfbe339d.tar.gz
Merge branch 'linus' into tmp.x86.mpparse.new
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 fa76969..de698dc 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;
}
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