Btrfs: fix possible memory leaks in open_ctree()

Fix possible memory leaks in the following error handling paths:

read_tree_block()
btrfs_recover_log_trees
btrfs_commit_super()
btrfs_find_orphan_roots()
btrfs_cleanup_fs_roots()

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 6d1ac7d46f81..0e4fb4a5c7f0 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2864,7 +2864,7 @@ retry_root_backup:
                         printk(KERN_ERR "BTRFS: failed to read log tree\n");
                         free_extent_buffer(log_tree_root->node);
                         kfree(log_tree_root);
-                        goto fail_trans_kthread;
+                        goto fail_qgroup;
                 }
                 /* returns with log_tree_root freed on success */
                 ret = btrfs_recover_log_trees(log_tree_root);
@@ -2873,24 +2873,24 @@ retry_root_backup:
                                     "Failed to recover log tree");
                         free_extent_buffer(log_tree_root->node);
                         kfree(log_tree_root);
-                        goto fail_trans_kthread;
+                        goto fail_qgroup;
                 }
 
                 if (sb->s_flags & MS_RDONLY) {
                         ret = btrfs_commit_super(tree_root);
                         if (ret)
-                                goto fail_trans_kthread;
+                                goto fail_qgroup;
                 }
         }
 
         ret = btrfs_find_orphan_roots(tree_root);
         if (ret)
-                goto fail_trans_kthread;
+                goto fail_qgroup;
 
         if (!(sb->s_flags & MS_RDONLY)) {
                 ret = btrfs_cleanup_fs_roots(fs_info);
                 if (ret)
-                        goto fail_trans_kthread;
+                        goto fail_qgroup;
 
                 ret = btrfs_recover_relocation(tree_root);
                 if (ret < 0) {