diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index 54b2b7f..0bcab83 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -251,7 +251,8 @@
 	}
 
 	/* Register a call for panic conditions. */
-	notifier_chain_register(&panic_notifier_list, &parisc_panic_block);
+	atomic_notifier_chain_register(&panic_notifier_list,
+			&parisc_panic_block);
 
 	tasklet_enable(&power_tasklet);
 
@@ -264,7 +265,8 @@
 		return;
 
 	tasklet_disable(&power_tasklet);
-	notifier_chain_unregister(&panic_notifier_list, &parisc_panic_block);
+	atomic_notifier_chain_unregister(&panic_notifier_list,
+			&parisc_panic_block);
 	power_tasklet.func = NULL;
 	pdc_soft_power_button(0);
 }