[libvirt] [PATCH 1/2] conf: Provide error on undefined iothreadsched entry

[Peter Krempa]

On Mon, Aug 15, 2016 at 10:55:33 -0400, John Ferlan wrote:
> When commit id '6dfb4507' refactored where the iothreadsched data was
> stored, the error message for when the virDomainIOThreadIDFind failed
> to find an iothreadid ("iothreadsched attribute 'iothreads' uses
> undefined iothread ids") was lost. This led to the possibility that
> someone would try to use it, but receive the generic message "An error
> occurred, but the cause is unknown".
> 
> This patch adds the error message back so that someone will know that
> they have an invalid configuration.
> 
> Signed-off-by: John Ferlan <jferlan at redhat.com>
> ---
>  src/conf/domain_conf.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)

Same as for 2/2. Code paths that care should report the error in place
since we would report duplicate errors in cases where it can be ignored
or is overwritten.