diff options
Diffstat (limited to 'drivers/acpi/acpica/rscalc.c')
| -rw-r--r-- | drivers/acpi/acpica/rscalc.c | 22 |
1 files changed, 5 insertions, 17 deletions
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c index 6e7a152d6459..242daf45e20e 100644 --- a/drivers/acpi/acpica/rscalc.c +++ b/drivers/acpi/acpica/rscalc.c @@ -608,18 +608,12 @@ acpi_rs_get_list_length(u8 *aml_buffer, case ACPI_RESOURCE_NAME_SERIAL_BUS:{ - /* Avoid undefined behavior: member access within misaligned address */ - - struct aml_resource_common_serialbus - common_serial_bus; - memcpy(&common_serial_bus, aml_resource, - sizeof(common_serial_bus)); - minimum_aml_resource_length = acpi_gbl_resource_aml_serial_bus_sizes - [common_serial_bus.type]; + [aml_resource->common_serial_bus.type]; extra_struct_bytes += - common_serial_bus.resource_length - + aml_resource->common_serial_bus. + resource_length - minimum_aml_resource_length; break; } @@ -688,16 +682,10 @@ acpi_rs_get_list_length(u8 *aml_buffer, */ if (acpi_ut_get_resource_type(aml_buffer) == ACPI_RESOURCE_NAME_SERIAL_BUS) { - - /* Avoid undefined behavior: member access within misaligned address */ - - struct aml_resource_common_serialbus common_serial_bus; - memcpy(&common_serial_bus, aml_resource, - sizeof(common_serial_bus)); - buffer_size = acpi_gbl_resource_struct_serial_bus_sizes - [common_serial_bus.type] + extra_struct_bytes; + [aml_resource->common_serial_bus.type] + + extra_struct_bytes; } else { buffer_size = acpi_gbl_resource_struct_sizes[resource_index] + |