diff --git a/[refs] b/[refs]
index 9e831acf7400..895300b657f1 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 12a1d933a99e1a2901575390dceea3819f2a575a
+refs/heads/master: d87b969d15a084503870da598c97278fb4877753
diff --git a/trunk/include/linux/regulator/driver.h b/trunk/include/linux/regulator/driver.h
index 73c9cd6cda7d..31f2055eae28 100644
--- a/trunk/include/linux/regulator/driver.h
+++ b/trunk/include/linux/regulator/driver.h
@@ -37,7 +37,8 @@ enum regulator_status {
  *
  * @enable: Configure the regulator as enabled.
  * @disable: Configure the regulator as disabled.
- * @is_enabled: Return 1 if the regulator is enabled, 0 otherwise.
+ * @is_enabled: Return 1 if the regulator is enabled, 0 if not.
+ *		May also return negative errno.
  *
  * @set_voltage: Set the voltage for the regulator within the range specified.
  *               The driver should select the voltage closest to min_uV.