[libvirt] [PATCH] virsh: Improve error when trying to change vm's cpu count 0

[Martin Kletzander]

On 06/21/2012 06:36 PM, Peter Krempa wrote:
> This patch adds a check for the count of processors the user requests
> for the guest machine so that invalid values produce a more helpful
> error message.
> ---
>  tools/virsh.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/tools/virsh.c b/tools/virsh.c
> index 55cbe2b..2ec84cd 100644
> --- a/tools/virsh.c
> +++ b/tools/virsh.c
> @@ -5755,7 +5755,7 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd)
>      if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
>          return false;
> 
> -    if (vshCommandOptInt(cmd, "count", &count) < 0) {
> +    if (vshCommandOptInt(cmd, "count", &count) < 0 || count <= 0) {
>          vshError(ctl, "%s", _("Invalid number of virtual CPUs"));
>          goto cleanup;
>      }
> 

This gets checked in the driver, but one more check here means no
pointless connection and better error message, so ACK,

Martin