From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
Currently of_numa_parse_memory_nodes() returns 0 if no "memory" node in
device tree contains "numa-node-id" property. This makes of_numa_init()
to return "success" despite no NUMA nodes were actually parsed and set
up.
arch_numa workarounds this by returning an error if numa_nodes_parsed is
empty.
numa_memblks however would WARN() in such case and since it will be used
by arch_numa shortly, such warning is not desirable.
Make sure of_numa_init() returns -EINVAL when no NUMA node information
was found in the device tree.
Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
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