diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/dell-smm-hwmon.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c index 0e1bc3a2dd12..eaace478f508 100644 --- a/drivers/hwmon/dell-smm-hwmon.c +++ b/drivers/hwmon/dell-smm-hwmon.c @@ -327,7 +327,7 @@ static int i8k_enable_fan_auto_mode(const struct dell_smm_data *data, bool enabl } /* - * Set the fan speed (off, low, high). Returns the new fan status. + * Set the fan speed (off, low, high, ...). */ static int i8k_set_fan(const struct dell_smm_data *data, int fan, int speed) { @@ -339,7 +339,7 @@ static int i8k_set_fan(const struct dell_smm_data *data, int fan, int speed) speed = (speed < 0) ? 0 : ((speed > data->i8k_fan_max) ? data->i8k_fan_max : speed); regs.ebx = (fan & 0xff) | (speed << 8); - return i8k_smm(®s) ? : i8k_get_fan_status(data, fan); + return i8k_smm(®s); } static int __init i8k_get_temp_type(int sensor) @@ -453,7 +453,7 @@ static int i8k_ioctl_unlocked(struct file *fp, struct dell_smm_data *data, unsigned int cmd, unsigned long arg) { int val = 0; - int speed; + int speed, err; unsigned char buff[16]; int __user *argp = (int __user *)arg; @@ -513,7 +513,11 @@ i8k_ioctl_unlocked(struct file *fp, struct dell_smm_data *data, unsigned int cmd if (copy_from_user(&speed, argp + 1, sizeof(int))) return -EFAULT; - val = i8k_set_fan(data, val, speed); + err = i8k_set_fan(data, val, speed); + if (err < 0) + return err; + + val = i8k_get_fan_status(data, val); break; default: |