[PATCH 3/4] qemu_passt: Report error when getting passt PID failed

[Laine Stump]

On 2/14/23 6:51 AM, Michal Privoznik wrote:
> If qemuPasstGetPid() fails, or the passt's PID is -1 then
> qemuPasstSetupCgroup() returns early without any error message
> set. Report an appropriate error.
> 
> Signed-off-by: Michal Privoznik <mprivozn at redhat.com>

Reviewed-by: Laine Stump <laine at redhat.com>

> ---
>   src/qemu/qemu_passt.c | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/src/qemu/qemu_passt.c b/src/qemu/qemu_passt.c
> index 0f09bf3db8..78830fdc26 100644
> --- a/src/qemu/qemu_passt.c
> +++ b/src/qemu/qemu_passt.c
> @@ -125,8 +125,11 @@ qemuPasstSetupCgroup(virDomainObj *vm,
>   {
>       pid_t pid = (pid_t) -1;
>   
> -    if (qemuPasstGetPid(vm, net, &pid) < 0 || pid <= 0)
> +    if (qemuPasstGetPid(vm, net, &pid) < 0 || pid <= 0) {
> +        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> +                       _("Could not get process ID of passt"));
>           return -1;
> +    }
>   
>       return virCgroupAddProcess(cgroup, pid);
>   }