Pull fs fixes from Al Viro:
"Fairly old hostfs bug (in setups that are not used by anyone,
apparently) + fix for this cycle regression: extra dput/mntput in
LOOKUP_CACHED failure handling"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
Make sure nd->path.mnt and nd->path.dentry are always valid pointers
hostfs: fix memory handling in follow_link()