From 021604471bad757b8964a6d18369247d5ba39328 Mon Sep 17 00:00:00 2001
From: Aaron Culliney <devnull@deadc0de.org>
Date: Sat, 11 Nov 2017 12:06:26 -0800
Subject: [PATCH] Avoid potential NPE

---
 .../java/org/deadc0de/apple2ix/Apple2DiskChooserActivity.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2DiskChooserActivity.java b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2DiskChooserActivity.java
index a347b1f8..2a3601dc 100644
--- a/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2DiskChooserActivity.java
+++ b/Android/app/src/main/java/org/deadc0de/apple2ix/Apple2DiskChooserActivity.java
@@ -158,7 +158,9 @@ public class Apple2DiskChooserActivity extends Activity {
     public void finish() {
         sDiskChooserIsChoosing.set(false);
         String name = chosenUri == null ? "" : chosenUri.toString();
-        sDisksCallback.onDisksChosen(new DiskArgs(name, chosenUri, chosenPfd));
+        if (sDisksCallback != null) {
+            sDisksCallback.onDisksChosen(new DiskArgs(name, chosenUri, chosenPfd));
+        }
         super.finish();
     }