diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 6c14101506e10d59a0bfbe9b19673ca1b5777f1c..a46b64de8f0218dab9190b4451dc7b763cbb2a05 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4360,7 +4360,8 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
 
 	block_rsv = get_block_rsv(trans, root);
 	cache = btrfs_lookup_block_group(root->fs_info, buf->start);
-	BUG_ON(block_rsv->space_info != cache->space_info);
+	if (block_rsv->space_info != cache->space_info)
+		goto out;
 
 	if (btrfs_header_generation(buf) == trans->transid) {
 		if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) {