Re: [PATCHv2 1/7] block: check for valid bio while splitting

[Christoph Hellwig]

On Tue, Aug 05, 2025 at 07:11:17AM -0700, Keith Busch wrote:
> @@ -341,6 +344,8 @@ int bio_split_rw_at(struct bio *bio, const struct queue_limits *lim,
>  	 * we do not use the full hardware limits.
>  	 */
>  	bytes = ALIGN_DOWN(bytes, bio_split_alignment(bio, lim));
> +	if (!bytes)
> +		return -EINVAL;

How is this related to the other hunk and the patch description?