Commit 20fcefe5 authored Jan 08, 2009 by Milton Miller Committed by Benjamin Herrenschmidt Feb 11, 2009

powerpc/numa: Avoid possible reference beyond prop. length in find_min_common_depth()

find_min_common_depth() was checking the property length incorrectly.
The value is in bytes not cells, and it is using the second entry.

Signed-off-By: Milton Miller <miltonm@bga.com>

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

parent 6a4d7a90

arch/powerpc/mm/numa.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -289,7 +289,7 @@ static int __init find_min_common_depth(void)
		ref_points = of_get_property(rtas_root,
		"ibm,associativity-reference-points", &len);

		if ((len >= 1) && ref_points) {
		if ((len >= 2 * sizeof(unsigned int)) && ref_points) {
		depth = ref_points[1];
		} else {
		dbg("NUMA: ibm,associativity-reference-points not found.\n");