[libvirt] [PATCH 24/26] qemu: Resolve Coverity NEGATIVE_RETURNS

Peter Krempa pkrempa at redhat.com
Thu Sep 11 09:52:18 UTC 2014


On 09/05/14 00:26, John Ferlan wrote:
> Coverity notes that if qemuMonitorGetMachines() returns a negative
> nmachines value, then the code at the cleanup label will have issues.
> 
> Signed-off-by: John Ferlan <jferlan at redhat.com>
> ---
>  src/qemu/qemu_capabilities.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
> index 854a9b8..a652f29 100644
> --- a/src/qemu/qemu_capabilities.c
> +++ b/src/qemu/qemu_capabilities.c
> @@ -2285,7 +2285,7 @@ virQEMUCapsProbeQMPMachineTypes(virQEMUCapsPtr qemuCaps,
>      size_t defIdx = 0;
>  
>      if ((nmachines = qemuMonitorGetMachines(mon, &machines)) < 0)
> -        goto cleanup;
> +        return -1;

Also nmachines doesn't need to be initialized.

>  
>      if (VIR_ALLOC_N(qemuCaps->machineTypes, nmachines) < 0)
>          goto cleanup;
> 

ACK


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