[PATCH] btrfs: fix memory leak at umount

[Li Zefan]

fs_info, which is allocated in open_ctree(), should be freed
in close_ctree().

Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---

candidate for stable ?

---
 fs/btrfs/disk-io.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 280de15..199cc26 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2469,6 +2469,8 @@ int close_ctree(struct btrfs_root *root)
 	kfree(fs_info->chunk_root);
 	kfree(fs_info->dev_root);
 	kfree(fs_info->csum_root);
+	kfree(fs_info);
+
 	return 0;
 }
 
-- 
1.6.3

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