static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
			struct ext4_ext_path *path, int depth)
{
	int err;
	ext4_fsblk_t leaf;

	/* free index block */
	depth--;
	path = path + depth;
	leaf = ext4_idx_pblock(path->p_idx);
	if (unlikely(path->p_hdr->eh_entries == 0)) {
		EXT4_ERROR_INODE(inode, "path->p_hdr->eh_entries == 0");
		return -EIO;
	}
	err = ext4_ext_get_access(handle, inode, path);
	if (err)
		return err;

	if (path->p_idx != EXT_LAST_INDEX(path->p_hdr)) {
		int len = EXT_LAST_INDEX(path->p_hdr) - path->p_idx;
		len *= sizeof(struct ext4_extent_idx);
		memmove(path->p_idx, path->p_idx + 1, len);
	}

	le16_add_cpu(&path->p_hdr->eh_entries, -1);
	err = ext4_ext_dirty(handle, inode, path);
	if (err)
		return err;
	ext_debug("index is empty, remove it, free block %llu\n", leaf);
	trace_ext4_ext_rm_idx(inode, leaf);

	ext4_free_blocks(handle, inode, NULL, leaf, 1,
			 EXT4_FREE_BLOCKS_METADATA | EXT4_FREE_BLOCKS_FORGET);

	while (--depth >= 0) {
		if (path->p_idx != EXT_FIRST_INDEX(path->p_hdr))
			break;
		path--;
		err = ext4_ext_get_access(handle, inode, path);
		if (err)
			break;
		path->p_idx->ei_block = (path+1)->p_idx->ei_block;
		err = ext4_ext_dirty(handle, inode, path);
		if (err)
			break;
	}
	return err;
}

Originally addressing errors in controlling program flow through indirect calls or jumps, this CWE has been deprecated and its concerns merged into more precise modern classifications.