diff --git a/arch/powerpc/sysdev/pmi.c b/arch/powerpc/sysdev/pmi.c
index a528201..0b53fed 100644
--- a/arch/powerpc/sysdev/pmi.c
+++ b/arch/powerpc/sysdev/pmi.c
@@ -279,6 +279,9 @@
 	struct pmi_data *data;
 	data = device->dev.driver_data;
 
+	if (!data)
+		return;
+
 	spin_lock(&data->handler_spinlock);
 	list_add_tail(&handler->node, &data->handler);
 	spin_unlock(&data->handler_spinlock);
@@ -289,11 +292,13 @@
 			    struct pmi_handler *handler)
 {
 	struct pmi_data *data;
+	data = device->dev.driver_data;
+
+	if (!data)
+		return;
 
 	pr_debug("pmi: unregistering handler %p\n", handler);
 
-	data = device->dev.driver_data;
-
 	spin_lock(&data->handler_spinlock);
 	list_del(&handler->node);
 	spin_unlock(&data->handler_spinlock);