btrfs: move transaction aborts to the error site in add_block_group_free_space()

[ Upstream commit b63c8c1 ]

Transaction aborts should be done next to the place the error happens,
which was not done in add_block_group_free_space().

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Stable-dep-of: 1f06c94 ("btrfs: always abort transaction on failure to add block group to free space tree")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: kdave

fs/btrfs/free-space-tree.c

@@ -1456,16 +1456,17 @@ int add_block_group_free_space(struct btrfs_trans_handle *trans,
 	path = btrfs_alloc_path();
 	if (!path) {
 		ret = -ENOMEM;
+		btrfs_abort_transaction(trans, ret);
 		goto out;
 	}
 
 	ret = __add_block_group_free_space(trans, block_group, path);
+	if (ret)
+		btrfs_abort_transaction(trans, ret);
 
 out:
 	btrfs_free_path(path);
 	mutex_unlock(&block_group->free_space_lock);
-	if (ret)
-		btrfs_abort_transaction(trans, ret);
 	return ret;
 }