Crash in PreferredSimDialogFragment

NullPointerException when removing physical SIM card

Bug: 244622300
Test: Manual
Change-Id: Ie32c4d07e4c77a0460265a47501e332ae62e17e4

src/com/android/settings/sim/PreferredSimDialogFragment.java

@@ -91,6 +91,7 @@ public class PreferredSimDialogFragment extends SimDialogFragment implements
         if (dialog == null) {
             Log.d(TAG, "Dialog is null.");
             dismiss();
+            return;
         }
 
         final SubscriptionInfo info = getPreferredSubscription();