ACPI / numa: Simplify acpi_get_node() style
ACPI / numa: Simplify acpi_get_node() style

Simplify control flow by removing local variable initialization and
returning a constant as soon as possible.  No functional change.

Signed-off-by: Bjorn Helgaas <f10ec01be0c6b54271af5c550cd257810bdf3268@google.com>
Acked-by: Rafael J. Wysocki <27ffc44a8ec6a212fba98cfc3246c6ce8ab131e0@intel.com>
KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs