mnt: If fs_fully_visible fails call put_filesystem.

Add this trivial missing error handling.

Cc: stable@vger.kernel.org
Fixes: 1b852bceb0 ("mnt: Refactor the logic for mounting sysfs and proc in a user namespace")
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2016-06-06 15:36:07 -05:00
commit 97c1df3e54