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Avoiding potential issues when a node is added to the hash but the debugfs is not NULL or IS_ERR() so a potential iteration over the hash and debugfs_remove() will not fail like in dlm_midcomms_exit(). However dlm_midcomms_exit() will be called in module init/exit function and the hash should be empty anyway at those stages. We change the behavior as cleanup to avoid potential issues. Reported-by: Ginger <ginger.jzllee@gmail.com> Closes: https://lore.kernel.org/gfs2/CAGp+u1ZE7UsQ4sSUHBKQXU8x3M_jwK=ek1urSjEtd3jXQGFmVg@mail.gmail.com Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com>