When converting atoi to strtol in a revision of introducing sysfs support for turbo percentage, a necessary check against '\n' returned by sysfs was not introduced. Fixes: de254dac608e ("power: read P-state turbo percentage from sysfs") Signed-off-by: Markus Theil <markus.theil@secunet.com> Reviewed-by: Reshma Pattan <reshma.pattan@intel.com>