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Commit 40b300fd authored by riddle_hsu's avatar riddle_hsu
Browse files

Fix race condition when collecting op callback. 

Other threads may change mOpModeWatchers, mPackageModeWatchers
by startWatchingMode, stopWatchingMode.

Change-Id: Id260172979ddfc2df9331880805d16ee13e183eb
parent 14a0981f

services/core/java/com/android/server/AppOpsService.java

+25 −23
Original line number Diff line number Diff line
@@ -513,6 +513,7 @@ public class AppOpsService extends IAppOpsService.Stub { 
        String[] uidPackageNames = getPackagesForUid(uid);

        ArrayMap<Callback, ArraySet<String>> callbackSpecs = null;



        synchronized (this) {

            ArrayList<Callback> callbacks = mOpModeWatchers.get(code);

            if (callbacks != null) {

                final int callbackCount = callbacks.size();
@@ -543,6 +544,7 @@ public class AppOpsService extends IAppOpsService.Stub { 
                    }

                }

            }

        }



        if (callbackSpecs == null) {

            return;