> + const size_t wksp_size = ZSTD_estimateCCtxSize(ZSTD_DEF_LEVEL);
> +
> + if (ZSTD_isError(wksp_size)) {
> + ret = -EINVAL;
> + goto out_free;
> + }Pleas switch to properly named functions when you touch this. The API names here look like a cat threw up on the keyboard.

