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| author | Guenter Roeck <linux@roeck-us.net> | 2012-09-19 11:27:03 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2012-09-23 21:08:35 -0700 |
| commit | a91698135bef4e945b0eee1b676d6ea5085177dc (patch) | |
| tree | 93e8315218b399d9e442d33d3e49ebc25343ea94 /drivers/hwmon/w83791d.c | |
| parent | 3be8102fe30c09e9b264a2f08ae2f69da7e32eb4 (diff) | |
| download | linux-a91698135bef4e945b0eee1b676d6ea5085177dc.tar.bz2 | |
hwmon: (w83791d) Drop unnecessary compare statements
The following build warnings are seen with -Wextra.
w83791d.c: In function store_temp_target:
w83791d.c:858:2: warning: comparison of unsigned expression < 0 is always false
w83791d.c: In function store_temp_tolerance:
w83791d.c:920:2: warning: comparison of unsigned expression < 0 is always false
For store_temp_target, accept negative numbers and clamp to >= 0.
For store_temp_tolerance, drop the unnecessary comparison.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon/w83791d.c')
| -rw-r--r-- | drivers/hwmon/w83791d.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c index 9ade4d4e2185..93ea81a4bf35 100644 --- a/drivers/hwmon/w83791d.c +++ b/drivers/hwmon/w83791d.c @@ -259,8 +259,7 @@ static u8 fan_to_reg(long rpm, int div) ((val) + 500) / 1000) /* for thermal cruise temp tolerance, 4-bits, LSB = 1 degree Celsius */ -#define TOL_TEMP_TO_REG(val) ((val) < 0 ? 0 : \ - (val) >= 15000 ? 15 : \ +#define TOL_TEMP_TO_REG(val) ((val) >= 15000 ? 15 : \ ((val) + 500) / 1000) #define BEEP_MASK_TO_REG(val) ((val) & 0xffffff) @@ -848,10 +847,10 @@ static ssize_t store_temp_target(struct device *dev, struct i2c_client *client = to_i2c_client(dev); struct w83791d_data *data = i2c_get_clientdata(client); int nr = sensor_attr->index; - unsigned long val; + long val; u8 target_mask; - if (kstrtoul(buf, 10, &val)) + if (kstrtol(buf, 10, &val)) return -EINVAL; mutex_lock(&data->update_lock); |