From 9d3520a339d62f942085e9888f66905eb8b350bd Mon Sep 17 00:00:00 2001
From: Stefan Rompf <stefan@loplof.de>
Date: Fri, 6 Jan 2006 00:20:08 -0800
Subject: [PATCH] [PATCH] dm-crypt: zero key before freeing it

Zap the memory before freeing it so we don't leave crypto information
around in memory.

Signed-off-by: Stefan Rompf <stefan@loplof.de>
Acked-by: Clemens Fruhwirth <clemens@endorphin.org>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
Reading git-format-patch failed