From: Jeff Mahoney <jeffm@suse.com>
To: Btrfs Development List <linux-btrfs@vger.kernel.org>
Subject: [PATCH] btrfs: balance_level checks !child after access
Date: Wed, 04 Feb 2009 13:54:48 -0500 [thread overview]
Message-ID: <4989E478.4030907@suse.com> (raw)
The BUG_ON(!child) should be before it's used.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
fs/btrfs/ctree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -917,9 +917,9 @@ static noinline int balance_level(struct btrfs_trans_handle *trans,
/* promote the child to a root */
child = read_node_slot(root, mid, 0);
+ BUG_ON(!child);
btrfs_tree_lock(child);
btrfs_set_lock_blocking(child);
- BUG_ON(!child);
ret = btrfs_cow_block(trans, root, child, mid, 0, &child, 0);
BUG_ON(ret);
--
Jeff Mahoney
SUSE Labs
reply other threads:[~2009-02-04 18:54 UTC|newest]
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