Re: [PATCH] libxl: fix handling returns in libxl_get_version_info()

[Ian Campbell <ian.campbell@citrix.com>]

On Thu, 2016-02-11 at 10:48 +0100, Dario Faggioli wrote:
> I think it would be better if you make the patch in such a way that the
> final code would look like this:
> 
>     r = xc_version(ctx->xch, XENVER_extraversion, &u.xen_extra);
>     if ( r < 0 )
>         goto out;
>     info->xen_version_extra = libxl__strdup(NOGC, u.xen_extra);

That is, each "paragraph" consists of:

    call a variant of xc_version
    check for errors in that call
    propagate results of that call to info->... as necessary

and I agree. FWIW CODING_STYLE also allows (but doesn't mandate) for
    if ( r < 0 ) goto out;
i.e. on a single line, which Harmandeep might prefer here for brevity.

Ian

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