From fe738ef1011dae6b5f37bc79cfc091cdd8370d92 Mon Sep 17 00:00:00 2001
From: Bastien Dejean <nihilhill@gmail.com>
Date: Thu, 17 Nov 2016 14:12:31 +0100
Subject: [PATCH] Don't try to return an element from an empty set

---
 frontend/ui/screensaver.lua | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/frontend/ui/screensaver.lua b/frontend/ui/screensaver.lua
index adaf9cca3..09478ff53 100644
--- a/frontend/ui/screensaver.lua
+++ b/frontend/ui/screensaver.lua
@@ -57,6 +57,9 @@ local function getRandomImage(dir)
             end
         end
     end
+    if i == 0 then
+        return nil
+    end
     return createWidgetFromFile(dir .. pics[math.random(i)])
 end