Re: [PATCH 2/2] qemu: sev: Don't jump to endjob if SEV measurement retrieval fails

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On Mon, Jun 18, 2018 at 09:20 AM +0200, Erik Skultety <eskultet@xxxxxxxxxx> wrote:
> If measurement retrieval fails we'd forget to call ExitMonitor to unlock
> the monitor.
>
> Signed-off-by: Erik Skultety <eskultet@xxxxxxxxxx>
> Reported-by: Luyao Huang <lhuang@xxxxxxxxxx>
> ---
>  src/qemu/qemu_driver.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index fd25eb1b0b..d71956988f 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -21513,10 +21513,8 @@ qemuDomainGetSEVMeasurement(virQEMUDriverPtr driver,
>
>      qemuDomainObjEnterMonitor(driver, vm);
>      tmp = qemuMonitorGetSEVMeasurement(QEMU_DOMAIN_PRIVATE(vm)->mon);
> -    if (tmp == NULL)
> -        goto endjob;
>
> -    if (qemuDomainObjExitMonitor(driver, vm) < 0)
> +    if (qemuDomainObjExitMonitor(driver, vm) < 0 || !tmp)
>          goto endjob;
>
>      if (virTypedParamsAddString(params, nparams, &maxpar,
> --
> 2.14.4
>
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>

Small nit: I would probably just move the “if-tmp-block” behind the
“if-…ExitMonitor()-block”. But I have no strong opinion about that :)

Anyway Reviewed-by: Marc Hartmayer <mhartmay@xxxxxxxxxxxxx>

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IBM Deutschland Research & Development GmbH
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