From: Chris Mason <chris.mason@fusionio.com>
Date: Sat, 16 Jun 2012 00:02:02 +0000 (-0400)
Subject: Btrfs: init old_generation in get_old_root
X-Git-Tag: v3.5-rc3~1^2~1
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=4325edd0786fdd3909f9550e52a963b2fe54f78b;p=~emulex%2Finfiniband.git

Btrfs: init old_generation in get_old_root

gcc was giving an uninit variable warning here.  Strictly
speaking we don't need to init it, but this will make things
much less error prone.

Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 04b06bcf2ca..15cbc2bf4ff 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1175,7 +1175,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
 	struct tree_mod_elem *tm;
 	struct extent_buffer *eb;
 	struct tree_mod_root *old_root = NULL;
-	u64 old_generation;
+	u64 old_generation = 0;
 	u64 logical;
 
 	eb = btrfs_read_lock_root_node(root);