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Instead of just comparing the cpu topology IDs with -1 to check their validity, improve that by checking for a valid non-negative value. Link: https://lore.kernel.org/r/20220704101605.1318280-15-sudeep.holla@arm.com Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Tested-by: Ionela Voinescu <ionela.voinescu@arm.com> Tested-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Gavin Shan <gshan@redhat.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>