From da85de8a42a3f0c28a8cd48c34d93801afb7aa23 Mon Sep 17 00:00:00 2001
From: John Eckersberg <jeckersb@redhat.com>
Date: Fri, 11 Oct 2013 22:26:07 -0400
Subject: [PATCH] btrfs: Fix improper memmove usage in do_btrfs_subvolume_list
 (RHBZ#1018149).

The third parameter (number of bytes to copy) was given as an offset
relative to dest, when it should be relative to src.  This fixes some
valgrind warnings I happened across.
---
 daemon/btrfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/daemon/btrfs.c b/daemon/btrfs.c
index c3247ac04..765dec61a 100644
--- a/daemon/btrfs.c
+++ b/daemon/btrfs.c
@@ -473,7 +473,7 @@ do_btrfs_subvolume_list (const mountable_t *fs)
 
     #undef XSTRTOU64
 
-    memmove (line, line + ovector[6], ovector[7] + 1);
+    memmove (line, line + ovector[6], ovector[7] - ovector[6] + 1);
     this->btrfssubvolume_path = line;
   }