const char *buf, size_t count)
{
struct ads7846 *ts = dev_get_drvdata(dev);
- unsigned long i;
+ unsigned int i;
+ int err;
- if (strict_strtoul(buf, 10, &i))
- return -EINVAL;
+ err = kstrtouint(buf, 10, &i);
+ if (err)
+ return err;
if (i)
ads7846_disable(ts);