Merge branch 'ucount-fixes-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel...

Pull ucount cleanups from Eric Biederman:
 "While working on the ucount fixes a for v5.15 a number of cleanups
  suggested themselves.

  Little things like not testing for NULL when a pointer can not be NULL
  and wrapping atomic_add_negative with a more descriptive name, so that
  people reading the code can more quickly understand what is going on"

* 'ucount-fixes-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  ucounts: Use atomic_long_sub_return for clarity
  ucounts: Add get_ucounts_or_wrap for clarity
  ucounts: Remove unnecessary test for NULL ucount in get_ucounts
  ucounts: In set_cred_ucounts assume new->ucounts is non-NULL