diff options
Diffstat (limited to 'drivers/acpi/acpica/rscalc.c')
| -rw-r--r-- | drivers/acpi/acpica/rscalc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index b6667ff059e5..88b5a2c4814d 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -543,6 +543,13 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, package_element = *top_object_list; + /* We must have a valid Package object */ + + if (!package_element || + (package_element->common.type != ACPI_TYPE_PACKAGE)) { + return_ACPI_STATUS (AE_AML_OPERAND_TYPE); + } + /* * The sub_object_list will now point to an array of the * four IRQ elements: Address, Pin, Source and source_index |