acpi: acpi.c: memory leak

[dcb]

Binary package hint: acpi

For source code file acpi-1.4/acpi.c, function get_info,
line 165 is the source code

    char *filename = malloc(strlen(device_name) + strlen("/energy_full_design "));

but I fail to find a matching call to free. This looks like a memory leak
to me. Suggest add call to free near the end of the routine.