autofs: convert autofs_dev_ioctl_open_mountpoint() to FD_ADD()

 */

static int autofs_dev_ioctl_open_mountpoint(const char *name, dev_t devid)

{

	int err, fd;

	fd = get_unused_fd_flags(O_CLOEXEC);

	if (likely(fd >= 0)) {

		struct file *filp;

		struct path path;

	struct path path __free(path_put) = {};

	int err;

	err = find_autofs_mount(name, &path, test_by_dev, &devid);

	if (err)

			goto out;

		filp = dentry_open(&path, O_RDONLY, current_cred());

		path_put(&path);

		if (IS_ERR(filp)) {

			err = PTR_ERR(filp);

			goto out;

		}

		fd_install(fd, filp);

	}

	return fd;

out:

	put_unused_fd(fd);

		return err;

	return FD_ADD(O_CLOEXEC, dentry_open(&path, O_RDONLY, current_cred()));

}

/* Open a file descriptor on an autofs mount point */