/* kernel glue structures */
-static struct file_operations pg_fops = {
+static const struct file_operations pg_fops = {
.owner = THIS_MODULE,
.read = pg_read,
.write = pg_write,
int err;
if (disable){
- err = -1;
+ err = -EINVAL;
goto out;
}
pg_init_units();
if (pg_detect()) {
- err = -1;
+ err = -ENODEV;
goto out;
}