Re: [Qemu-devel] [PATCH 13/13] qapi: Add missing null check to opts_start_struct()

[Eric Blake]

On 02/10/2014 07:20 AM, Markus Armbruster wrote:
> Argument is null when visiting an unboxed struct.  I can't see such a
> visit in the current code.  Fix it anyway.

Is this a sign of missing testsuite coverage?

> 
> Signed-off-by: Markus Armbruster <address@hidden>
> ---
>  qapi/opts-visitor.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Reviewed-by: Eric Blake <address@hidden>

> 
> diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c
> index 96ed858..5d830a2 100644
> --- a/qapi/opts-visitor.c
> +++ b/qapi/opts-visitor.c
> @@ -124,7 +124,9 @@ opts_start_struct(Visitor *v, void **obj, const char 
> *kind,
>      OptsVisitor *ov = DO_UPCAST(OptsVisitor, visitor, v);
>      const QemuOpt *opt;
>  
> -    *obj = g_malloc0(size > 0 ? size : 1);
> +    if (obj) {
> +        *obj = g_malloc0(size > 0 ? size : 1);
> +    }
>      if (ov->depth++ > 0) {
>          return;
>      }
> 

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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