Snap for 5892339 from 83aa272cae58ad2be32b946f5d4011abefcb07e8 to qt-qpr1-release

Change-Id: I78d0c2ea3a4bbcb8e46c024120c6865d9392cc73
diff --git a/keystore/key_store_service.cpp b/keystore/key_store_service.cpp
index 5e7efab..e1b1a66 100644
--- a/keystore/key_store_service.cpp
+++ b/keystore/key_store_service.cpp
@@ -1039,6 +1039,10 @@
     std::tie(rc, keyBlob, charBlob, lockedEntry) =
         mKeyStore->getKeyForName(name8, callingUid, TYPE_KEYMASTER_10);
 
+    if (!rc.isOk()) {
+        return AIDL_RETURN(rc);
+    }
+
     auto dev = mKeyStore->getDevice(keyBlob);
     auto hidlKey = blob2hidlVec(keyBlob);
     dev->attestKey(