When cores are unregistered, entries
need to be removed from cores list in a safe manner.
Reported-by: NStanislaw Gruszka <sgruszka@redhat.com>
Reviewed-by: NArend Van Spriel <arend@broadcom.com>
Signed-off-by: NPiotr Haber <phaber@broadcom.com>
Cc: stable@vger.kernel.org
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>