powerpc/numa: Avoid stupid uninitialized warning from gcc

commit aa709f3bc92c6daaf177cd7e3446da2ef64426c6 upstream.

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>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 6130719fa0fcd091eb6f17f254d452a90f276208..4ec32a6fa2782e7dbd14adf1945f6e2fa5101e6b 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)