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[PATCH v6 03/14] arm64/numa: add nid check for memory block

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  [PATCH v6 03/14] arm64/numa: add nid check for memory block Zhen Lei <thunder.leizhen@huawei.com> - 2016-08-11 11:40 +0200

#1460325 — [PATCH v6 03/14] arm64/numa: add nid check for memory block

Use the same tactic to cpu and numa-distance nodes.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
 drivers/of/of_numa.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index 7b3fbdc..afaeb9c 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -75,6 +75,11 @@ static int __init of_numa_parse_memory_nodes(void)
 			 */
 			continue;

+		if (nid >= MAX_NUMNODES) {
+			pr_warn("NUMA: Node id %u exceeds maximum value\n", nid);
+			return -EINVAL;
+		}
+
 		for (i = 0; !r && !of_address_to_resource(np, i, &rsrc); i++)
 			r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1);

--
2.5.0

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