diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c
index f3278a6603ca3b0913280f4bfa5c7e07c0eff47a..90e34ac7e522dfcf2c5af269639f5f877d95ac3b 100644
--- a/drivers/xen/xen-acpi-processor.c
+++ b/drivers/xen/xen-acpi-processor.c
@@ -505,6 +505,9 @@ static int __init xen_acpi_processor_init(void)
 
 		pr = per_cpu(processors, i);
 		perf = per_cpu_ptr(acpi_perf_data, i);
+		if (!pr)
+			continue;
+
 		pr->performance = perf;
 		rc = acpi_processor_get_performance_info(pr);
 		if (rc)