Btrfs: fix em leak in find_first_block_group

We need to call free_extent_map() on the em we look up.Btrfs: fix em leak in
find_first_block_group

We need to call free_extent_map() on the em we look up.

Signed-off-by: Josef Bacik <jbacik@fb.com>
(cherry picked from commit b374bd454dad6486e10b386e2196f950a0c6e294)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 03f487ea837c11b79838106e5dffac933784cc3d..77b2f9479a16c8284749bcb1fefe6a45b0e37c37 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -9613,6 +9613,7 @@ static int find_first_block_group(struct btrfs_root *root,
                        } else {
                                ret = 0;
                        }
+                       free_extent_map(em);
                        goto out;
                }
                path->slots[0]++;