Fix issue #17811029: Settings provider race when removing users
Change-Id: Ia40d0a9c161b765d1340db5390d0acdbfc050b81
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
index 3453a67..34e57bc 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
@@ -506,7 +506,14 @@
}
private void fullyPopulateCaches(final int userHandle) {
- DatabaseHelper dbHelper = mOpenHelpers.get(userHandle);
+ DatabaseHelper dbHelper;
+ synchronized (this) {
+ dbHelper = mOpenHelpers.get(userHandle);
+ }
+ if (dbHelper == null) {
+ // User is gone.
+ return;
+ }
// Only populate the globals cache once, for the owning user
if (userHandle == UserHandle.USER_OWNER) {
fullyPopulateCache(dbHelper, TABLE_GLOBAL, sGlobalCache);
@@ -611,10 +618,15 @@
long oldId = Binder.clearCallingIdentity();
try {
- DatabaseHelper dbHelper = mOpenHelpers.get(callingUser);
+ DatabaseHelper dbHelper;
+ synchronized (this) {
+ dbHelper = mOpenHelpers.get(callingUser);
+ }
if (null == dbHelper) {
establishDbTracking(callingUser);
- dbHelper = mOpenHelpers.get(callingUser);
+ synchronized (this) {
+ dbHelper = mOpenHelpers.get(callingUser);
+ }
}
return dbHelper;
} finally {