From a6039e1be2ca794497d073afe4d666454845b2b8 Mon Sep 17 00:00:00 2001
From: Rickard Nilsson <rickynils@gmail.com>
Date: Thu, 2 Aug 2012 11:39:31 +0200
Subject: [PATCH] LUKS root: Fix key file check

Check for null instead of empty string
---
 modules/system/boot/luksroot.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/system/boot/luksroot.nix b/modules/system/boot/luksroot.nix
index db25e9390ab..27c9c85eab3 100644
--- a/modules/system/boot/luksroot.nix
+++ b/modules/system/boot/luksroot.nix
@@ -19,7 +19,7 @@ let
         echo "ok"
     fi
 
-    ${optionalString (keyFile != "") ''
+    ${optionalString (keyFile != null) ''
     if ! test -e ${keyFile}; then
         echo -n "waiting 10 seconds for key file ${keyFile} to appear..."
         for try in $(seq 10); do