- /* get the Pioctl data arguments from user space */
- if (copy_from_user(&data, (void __user *)user_data, sizeof(data))) {
- return -EINVAL;
- }
-
- /*
- * Look up the pathname. Note that the pathname is in
- * user memory, and namei takes care of this
- */
- if (data.follow) {
- error = user_path(data.path, &path);
- } else {
- error = user_lpath(data.path, &path);
+ lock_kernel();
+
+ /* get the Pioctl data arguments from user space */
+ if (copy_from_user(&data, (void __user *)user_data, sizeof(data))) {
+ error = -EINVAL;
+ goto out;