drivers/acpi/acpi_fpdt.c

165 	struct fpdt_subtable_header *subtable_header;
176 	subtable_header = acpi_os_map_memory(address, sizeof(*subtable_header));
177 	if (!subtable_header)
180 	if (strncmp((char *)&subtable_header->signature, signature, 4)) {
185 	length = subtable_header->length;
186 	acpi_os_unmap_memory(subtable_header, sizeof(*subtable_header));
188 	subtable_header = acpi_os_map_memory(address, length);
189 	if (!subtable_header)
192 	offset = sizeof(*subtable_header);
194 		record_header = (void *)subtable_header + offset;