[PATCH] Revert "debugfs: ->d_parent is never NULL or negative"

[Al Viro]

On Thu, Oct 06, 2016 at 05:30:29PM -0400, Sinan Kaya wrote:
> This reverts commit acc29fb8f792 ("debugfs: ->d_parent is never NULL or
> negative") as it breaks the debugfs_remove_recursive API as show in the
> callstack below.

NAK.  Fix your code, don't break global asserts.