[bwh: This is only applicable to 2.6.32. Phonet was fixed upstream to
work with multiple net namespaces.]

This should really fix the OOPS when doing:

  unshare(CLONE_NEWNET);
  exit(0);

while the phonet module is loaded.
Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>