diff --git a/config/hiddenapi-light-greylist.txt b/config/hiddenapi-light-greylist.txt
index 39b327c3674b2..8a770b9365639 100644
--- a/config/hiddenapi-light-greylist.txt
+++ b/config/hiddenapi-light-greylist.txt
@@ -3568,7 +3568,6 @@ Lcom/android/internal/telephony/SubscriptionController;->getDefaultDataSubId()I
 Lcom/android/internal/telephony/SubscriptionController;->getDefaultSmsSubId()I
 Lcom/android/internal/telephony/SubscriptionController;->getDefaultSubId()I
 Lcom/android/internal/telephony/SubscriptionController;->getDefaultVoiceSubId()I
-Lcom/android/internal/telephony/SubscriptionController;->getDummySubIds(I)[I
 Lcom/android/internal/telephony/SubscriptionController;->getInstance()Lcom/android/internal/telephony/SubscriptionController;
 Lcom/android/internal/telephony/SubscriptionController;->getPhoneId(I)I
 Lcom/android/internal/telephony/SubscriptionController;->getSubId(I)[I
diff --git a/telephony/java/android/telephony/SubscriptionManager.java b/telephony/java/android/telephony/SubscriptionManager.java
index a6fa6bf79a9cd..3200aeaaa1164 100644
--- a/telephony/java/android/telephony/SubscriptionManager.java
+++ b/telephony/java/android/telephony/SubscriptionManager.java
@@ -1421,8 +1421,9 @@ public class SubscriptionManager {
 
     /**
      * Get an array of Subscription Ids for specified slot Index.
-     * @param slotIndex the slot Index.
-     * @return subscription Ids or null if the given slot Index is not valid.
+     * @param slotIndex the slot index.
+     * @return subscription Ids or null if the given slot Index is not valid or there are no active
+     * subscriptions in the slot.
      */
     @Nullable
     public static int[] getSubscriptionIds(int slotIndex) {