Merge "Fix unlock sim thread leak" into main am: 71c1c0a525 am: decd41773b am: 6c7b329e28 am: 84a3be8dde

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telephony/+/2714253

Change-Id: I026b10ee5d9afabab1356683416b356560ff9309
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/src/com/android/phone/PhoneInterfaceManager.java b/src/com/android/phone/PhoneInterfaceManager.java
index 0107b1c..5cccd7f 100644
--- a/src/com/android/phone/PhoneInterfaceManager.java
+++ b/src/com/android/phone/PhoneInterfaceManager.java
@@ -2745,6 +2745,9 @@
          * If PUK is null, unlock SIM card with PIN
          *
          * If PUK is not null, unlock SIM card with PUK and set PIN code
+         *
+         * Besides, since it is reused in class level, the thread's looper will be stopped to avoid
+         * its thread leak.
          */
         synchronized int[] unlockSim(String puk, String pin) {
 
@@ -2780,6 +2783,8 @@
             if (mResult == PhoneConstants.PIN_RESULT_SUCCESS && pin.length() > 0) {
                 UiccController.getInstance().getPinStorage().storePin(pin, mPhoneId);
             }
+            // This instance is no longer reused, so quit its thread's looper.
+            mHandler.getLooper().quitSafely();
 
             return resultArray;
         }