From 40fc1cde8ecbe6fc51b25d33e4ef1f8e624f3def Mon Sep 17 00:00:00 2001
From: JW Wang <wangchun@google.com>
Date: Tue, 28 Jul 2020 12:50:52 +0800
Subject: [PATCH] Fix #removeChildSessionId (3/n)

Can't remove child from a sealed session.

Bug: 162286562
Test: Will be added in next CLs
Change-Id: I5fe20ede028f0e00e739316dab5c6a24b1546718
---
 .../java/com/android/server/pm/PackageInstallerSession.java     | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/services/core/java/com/android/server/pm/PackageInstallerSession.java b/services/core/java/com/android/server/pm/PackageInstallerSession.java
index ff96c9173d594..c56f744722565 100644
--- a/services/core/java/com/android/server/pm/PackageInstallerSession.java
+++ b/services/core/java/com/android/server/pm/PackageInstallerSession.java
@@ -3141,6 +3141,8 @@ public class PackageInstallerSession extends IPackageInstallerSession.Stub {
             }
 
             synchronized (mLock) {
+                assertCallerIsOwnerOrRootLocked();
+                assertPreparedAndNotSealedLocked("removeChildSessionId");
                 final int indexOfSession = mChildSessionIds.indexOfKey(sessionId);
                 if (session != null) {
                     session.setParentSessionId(SessionInfo.INVALID_ID);