Fix settings crash if launched with null args

Test: manual
Change-Id: I81990d63606074fc670cc39471c91ee61a73f1fc
Fixes: 73666426

src/com/android/settings/notification/NotificationSettingsBase.java

@@ -112,10 +112,12 @@ abstract public class NotificationSettingsBase extends DashboardFragment {
 
         mPkgInfo = findPackageInfo(mPkg, mUid);
 
+        if (mPkgInfo != null) {
             mUserId = UserHandle.getUserId(mUid);
             mSuspendedAppsAdmin = RestrictedLockUtilsInternal.checkIfApplicationIsSuspended(
                     mContext, mPkg, mUserId);
 
+
             loadChannel();
             loadAppRow();
             loadChannelGroup();
@@ -127,6 +129,7 @@ abstract public class NotificationSettingsBase extends DashboardFragment {
                 controller.onResume(mAppRow, mChannel, mChannelGroup, mSuspendedAppsAdmin);
             }
         }
+    }
 
     @Override
     public void onCreate(Bundle savedInstanceState) {