diff --git a/drivers/of/address.c b/drivers/of/address.c
index 72914cd..580bbf6 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -710,7 +710,7 @@ static int __of_address_to_resource(struct device_node *dev,
  *
  * Note that if your address is a PIO address, the conversion will fail if
  * the physical address can't be internally converted to an IO token with
- * pci_address_to_pio(), that is because it's either called to early or it
+ * pci_address_to_pio(), that is because it's either called too early or it
  * can't be matched to any host bridge IO space
  */
 int of_address_to_resource(struct device_node *dev, int index,