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| author | Jared Bents <jared.bents@rockwellcollins.com> | 2016-11-19 05:20:38 +0100 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2016-12-02 22:28:04 +0100 |
| commit | 4538bfbf2d9f1fc48c07ac0cc0ee58716fe7fe96 (patch) | |
| tree | 56dc2bf52fe69a3e7df4fbcbea13855ed73d67e1 /drivers/hwmon | |
| parent | hwmon: (scpi) Fix module autoload (diff) | |
| download | linux-4538bfbf2d9f1fc48c07ac0cc0ee58716fe7fe96.tar.xz linux-4538bfbf2d9f1fc48c07ac0cc0ee58716fe7fe96.zip | |
hwmon: (amc6821) sign extension temperature
Converts the unsigned temperature values from the i2c read
to be sign extended as defined in the datasheet so that
negative temperatures are properly read.
Fixes: 28e6274d8fa67 ("hwmon: (amc6821) Avoid forward declaration")
Signed-off-by: Jared Bents <jared.bents@rockwellcollins.com>
Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com>
[groeck: Dropped unnecessary continuation line]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/amc6821.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c index 12e851a5af48..46b4e35fd555 100644 --- a/drivers/hwmon/amc6821.c +++ b/drivers/hwmon/amc6821.c @@ -188,8 +188,8 @@ static struct amc6821_data *amc6821_update_device(struct device *dev) !data->valid) { for (i = 0; i < TEMP_IDX_LEN; i++) - data->temp[i] = i2c_smbus_read_byte_data(client, - temp_reg[i]); + data->temp[i] = (int8_t)i2c_smbus_read_byte_data( + client, temp_reg[i]); data->stat1 = i2c_smbus_read_byte_data(client, AMC6821_REG_STAT1); |