Btrfs: cleanup warnings from gcc 4.6 (nonbugs)

These are all the cases where a variable is set, but not read which are
not bugs as far as I can see, but simply leftovers.

Still needs more review.

Found by gcc 4.6's new warnings

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 2d958be761c8..6a1086e83ffc 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -181,7 +181,6 @@ int btrfs_insert_root(struct btrfs_trans_handle *trans, struct btrfs_root
 int btrfs_find_dead_roots(struct btrfs_root *root, u64 objectid)
 {
         struct btrfs_root *dead_root;
-        struct btrfs_item *item;
         struct btrfs_root_item *ri;
         struct btrfs_key key;
         struct btrfs_key found_key;
@@ -214,7 +213,6 @@ again:
                         nritems = btrfs_header_nritems(leaf);
                         slot = path->slots[0];
                 }
-                item = btrfs_item_nr(leaf, slot);
                 btrfs_item_key_to_cpu(leaf, &key, slot);
                 if (btrfs_key_type(&key) != BTRFS_ROOT_ITEM_KEY)
                         goto next;