diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pwm/core.c | 10 | ||||
| -rw-r--r-- | drivers/pwm/pwm-max7360.c | 1 |
2 files changed, 7 insertions, 4 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index cd06229db394..ec8731515333 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -2295,8 +2295,9 @@ static long pwm_cdev_ioctl(struct file *file, unsigned int cmd, unsigned long ar .duty_offset_ns = wf.duty_offset_ns, }; - return copy_to_user((struct pwmchip_waveform __user *)arg, - &cwf, sizeof(cwf)); + ret = copy_to_user((struct pwmchip_waveform __user *)arg, + &cwf, sizeof(cwf)); + return ret ? -EFAULT : 0; } case PWM_IOCTL_GETWF: @@ -2329,8 +2330,9 @@ static long pwm_cdev_ioctl(struct file *file, unsigned int cmd, unsigned long ar .duty_offset_ns = wf.duty_offset_ns, }; - return copy_to_user((struct pwmchip_waveform __user *)arg, - &cwf, sizeof(cwf)); + ret = copy_to_user((struct pwmchip_waveform __user *)arg, + &cwf, sizeof(cwf)); + return ret ? -EFAULT : 0; } case PWM_IOCTL_SETROUNDEDWF: diff --git a/drivers/pwm/pwm-max7360.c b/drivers/pwm/pwm-max7360.c index 16261958ce7f..732969303dd7 100644 --- a/drivers/pwm/pwm-max7360.c +++ b/drivers/pwm/pwm-max7360.c @@ -153,6 +153,7 @@ static int max7360_pwm_read_waveform(struct pwm_chip *chip, } static const struct pwm_ops max7360_pwm_ops = { + .sizeof_wfhw = sizeof(struct max7360_pwm_waveform), .request = max7360_pwm_request, .round_waveform_tohw = max7360_pwm_round_waveform_tohw, .round_waveform_fromhw = max7360_pwm_round_waveform_fromhw, |