diff mbox

[v8,03/16] of/numa: add nid check for memory block

Message ID 1472712907-12700-4-git-send-email-thunder.leizhen@huawei.com
State New
Headers show

Commit Message

Leizhen (ThunderTown) Sept. 1, 2016, 6:54 a.m. UTC
If the numa-id which was configured in memory@ devicetree node is greater
than MAX_NUMNODES, we should report a warning. We have done this for cpus
and distance-map dt nodes, this patch help them to be consistent.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>

---
 drivers/of/of_numa.c | 5 +++++
 1 file changed, 5 insertions(+)

--
2.5.0


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diff mbox

Patch

diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index 7b3fbdc..c1bd62c 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);
+			r = -EINVAL;
+		}
+
 		for (i = 0; !r && !of_address_to_resource(np, i, &rsrc); i++)
 			r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1);