diff options
Diffstat (limited to 'drivers/acpi/utilities/utresrc.c')
| -rw-r--r-- | drivers/acpi/utilities/utresrc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c index 16461317113f..27158dd0f877 100644 --- a/drivers/acpi/utilities/utresrc.c +++ b/drivers/acpi/utilities/utresrc.c @@ -273,6 +273,7 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index) * Examine the large/small bit in the resource header */ if (resource_type & ACPI_RESOURCE_NAME_LARGE) { + /* Verify the large resource type (name) against the max */ if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { @@ -376,6 +377,7 @@ u8 acpi_ut_get_resource_type(void *aml) * Examine the large/small bit in the resource header */ if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource Type -- bits 6:0 contain the name */ return (ACPI_GET8(aml)); @@ -411,6 +413,7 @@ u16 acpi_ut_get_resource_length(void *aml) * Examine the large/small bit in the resource header */ if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource type -- bytes 1-2 contain the 16-bit length */ ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1)); @@ -515,6 +518,7 @@ acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc, /* Walk the resource template, one descriptor per iteration */ while (aml < end_aml) { + /* Validate the Resource Type and Resource Length */ status = acpi_ut_validate_resource(aml, NULL); |