1 files changed, 6 insertions, 0 deletions

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index c6c90f39f4d9..7b897b7b0ae6 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -477,6 +477,12 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
         if (!(pa->flags & ACPI_SRAT_CPU_ENABLED))
                 return;
 
+        if (srat_num_cpus >= ARRAY_SIZE(node_cpuid)) {
+                printk_once(KERN_WARNING
+                            "node_cpuid[%d] is too small, may not be able to use all cpus\n",
+                            ARRAY_SIZE(node_cpuid));
+                return;
+        }
         pxm = get_processor_proximity_domain(pa);
 
         /* record this node in proximity bitmap */