From 03943c960b4807869d11f5dbb3f055ff96e7661e Mon Sep 17 00:00:00 2001
From: Pavol Rusnak <stick@gk2.sk>
Date: Mon, 29 Jan 2018 08:09:02 +0100
Subject: [PATCH] tools: small refactor in keyctl

---
 tools/keyctl | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/keyctl b/tools/keyctl
index 8162bdb3..72834e38 100755
--- a/tools/keyctl
+++ b/tools/keyctl
@@ -32,9 +32,8 @@ def header_to_sign(index, data):
     elif index == 1:  # vendorheader
         return data[:-65] + z
     elif index == 2:  # firmware
-        vlen = struct.unpack('<I', data[4:8])
-        vlen = vlen[0]
-        return data[vlen:vlen + 0x03BF] + z
+        vhdrlen = struct.unpack('<I', data[4:8])[0]
+        return data[vhdrlen:vhdrlen + 0x03BF] + z
 
 
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