diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 7f837edfbfb7c3410bd0a523c8b1a781dee34e83..5cbacf6e2bf79531417e4a8aae0cb931cc6048cd 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -514,7 +514,7 @@ int __devinit arizona_dev_init(struct arizona *arizona)
 err_dcvdd:
 	regulator_disable(arizona->dcvdd);
 err_enable:
-	regulator_bulk_disable(ARRAY_SIZE(arizona->core_supplies),
+	regulator_bulk_disable(arizona->num_core_supplies,
 			       arizona->core_supplies);
 err_early:
 	mfd_remove_devices(dev);