diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index e71c0e0572bea30bb3026828b8711d85681e7e5d..d4092d729135b3a1ea40ad9f25e72216b4079a9f 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -827,6 +827,11 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr) cpc_obj = &out_obj->package.elements[0]; if (cpc_obj->type == ACPI_TYPE_INTEGER) { num_ent = cpc_obj->integer.value; + if (num_ent <= 1) { + pr_debug("Unexpected _CPC NumEntries value (%d) for CPU:%d\n", + num_ent, pr->id); + goto out_free; + } } else { pr_debug("Unexpected entry type(%d) for NumEntries\n", cpc_obj->type);