Testing if an unsigned long is greater than ULONG_T_MAX isn't very useful. The second half of the test checked for too small values (ie. <= -ULONG_T_MAX). In both cases errno is set to ERANGE, so just check for that. Change-Id: I92bad9d1715673531bef5d5d5756feddeb7674b4 Found-by: Coverity Scan Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: http://review.coreboot.org/6568 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>