From 8db9d8c2a4ef9806c286e258f9932a0972dc2375 Mon Sep 17 00:00:00 2001
From: Dave Reisner <dreisner@archlinux.org>
Date: Tue, 6 Nov 2012 10:17:18 -0500
Subject: [PATCH] cryptsetup: fix inverted comparison in pass_volume_key

---
 src/cryptsetup/cryptsetup.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c
index e8ba3f02a..56a3b5097 100644
--- a/src/cryptsetup/cryptsetup.c
+++ b/src/cryptsetup/cryptsetup.c
@@ -468,7 +468,8 @@ int main(int argc, char *argv[]) {
                                                  opt_keyfile_size,
                                                  &params);
 
-                                pass_volume_key = !!hash;
+                                /* hash == NULL implies the user passed "plain" */
+                                pass_volume_key = (hash == NULL);
                         }
 
                         if (k < 0) {