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authorTsutomu Itoh <t-itoh@jp.fujitsu.com>2013-03-21 04:32:32 +0000
committerChris Mason <chris.mason@fusionio.com>2013-03-21 19:31:52 -0400
commit1dd05682b3ef6e70409e130bfd83e91770801589 (patch)
tree778cbfa572ad33981b6ba077b99861675e476fc9 /fs/btrfs
parentd9abbf1c3131b679379762700201ae69367f3f62 (diff)
downloadlinux-1dd05682b3ef6e70409e130bfd83e91770801589.tar.bz2
Btrfs: fix memory leak in btrfs_create_tree()
We should free leaf and root before returning from the error handling code. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/disk-io.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 127b23e8323b..6d19a0a554aa 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1291,6 +1291,7 @@ struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
0, objectid, NULL, 0, 0, 0);
if (IS_ERR(leaf)) {
ret = PTR_ERR(leaf);
+ leaf = NULL;
goto fail;
}
@@ -1334,11 +1335,16 @@ struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
btrfs_tree_unlock(leaf);
+ return root;
+
fail:
- if (ret)
- return ERR_PTR(ret);
+ if (leaf) {
+ btrfs_tree_unlock(leaf);
+ free_extent_buffer(leaf);
+ }
+ kfree(root);
- return root;
+ return ERR_PTR(ret);
}
static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans,