diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 9cf09666616ff674560d352d726e605fbc6356e4..68473d0cc57e94f2b2af51d66ec3f3d448238af9 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -918,8 +918,10 @@ static int drms_uA_update(struct regulator_dev *rdev)
 	 * first check to see if we can set modes at all, otherwise just
 	 * tell the consumer everything is OK.
 	 */
-	if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_DRMS))
+	if (!regulator_ops_is_valid(rdev, REGULATOR_CHANGE_DRMS)) {
+		rdev_dbg(rdev, "DRMS operation not allowed\n");
 		return 0;
+	}
 
 	if (!rdev->desc->ops->get_optimum_mode &&
 	    !rdev->desc->ops->set_load)