[PATCH] ppc64: fix CPU numa init code thinkos

There seems to have been a couple of thinkos in the NUMA init code, in
particular in find_cpu_node():

* Property size returned is in bytes, not words
* Off-by-one error in loop iteration
Signed-off-by: Nathan Lynch <nathanl@austin.ibm.com>
Signed-off-by: Olof Johansson <olof@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc64/mm/numa.c

@@ -76,9 +76,11 @@ static struct device_node * __init find_cpu_node(unsigned int cpu)
 		interrupt_server = (unsigned int *)get_property(cpu_node,
 					"ibm,ppc-interrupt-server#s", &len);
 
+		len = len / sizeof(u32);
+
 		if (interrupt_server && (len > 0)) {
 			while (len--) {
-				if (interrupt_server[len-1] == hw_cpuid)
+				if (interrupt_server[len] == hw_cpuid)
 					return cpu_node;
 			}
 		} else {