{
struct input_polled_dev *polldev = dev_get_drvdata(dev);
struct input_dev *input = polldev->input;
- unsigned long interval;
+ unsigned int interval;
+ int err;
- if (strict_strtoul(buf, 0, &interval))
- return -EINVAL;
+ err = kstrtouint(buf, 0, &interval);
+ if (err)
+ return err;
if (interval < polldev->poll_interval_min)
return -EINVAL;