powerpc/numa: Avoid stupid uninitialized warning from gcc

Newer gcc are being a bit blind here (it's pretty obvious we don't
reach the code path using the array if we haven't initialized the
pointer) but none of that is performance critical so let's just
silence it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 6e8f677f5646e4c66c801b3bc670c615e880c5b9..1e95556dc692e3702f2df518dd4e08e7770ae52e 100644 (file)
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -639,7 +639,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
        unsigned int n, rc, ranges, is_kexec_kdump = 0;
        unsigned long lmb_size, base, size, sz;
        int nid;
-       struct assoc_arrays aa;
+       struct assoc_arrays aa = { .arrays = NULL };
 
        n = of_get_drconf_memory(memory, &dm);
        if (!n)