fs/namespace.c: shift put_mountpoint() to callers of unhash_mnt()

make unhash_mnt() return the mountpoint to be dropped, let callers
deal with it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2019-06-29 12:58:42 -04:00
commit e4e59906cf