diff --git a/drm/java/android/drm/DrmManagerClient.java b/drm/java/android/drm/DrmManagerClient.java
index 6caf678d85589..c541456cd92ad 100644
--- a/drm/java/android/drm/DrmManagerClient.java
+++ b/drm/java/android/drm/DrmManagerClient.java
@@ -479,6 +479,9 @@ public class DrmManagerClient {
      */
     public int acquireRights(DrmInfoRequest drmInfoRequest) {
         DrmInfo drmInfo = acquireDrmInfo(drmInfoRequest);
+        if (null == drmInfo) {
+            return ERROR_UNKNOWN;
+        }
         return processDrmInfo(drmInfo);
     }