On Fri, 19 Jul 2013 04:57:51 -0600 Eric Blake <ebl...@redhat.com> wrote:
> On 07/18/2013 08:36 PM, Pawit Pornkitprasan wrote: > > The qmp_migrate method uses the 'blk' and 'inc' parameter without > > checking if they're valid or not (they may be uninitialized if > > command is received via QMP) > > > > Signed-off-by: Pawit Pornkitprasan <p.pa...@gmail.com> > > --- > > migration.c | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > Reviewed-by: Eric Blake <ebl...@redhat.com> > > However, wouldn't it be nice if we improved the qapi generator to > guarantee a sane default value for optional parameters, even when > has_value is false? We could do that for bool and pointers, but this wouldn't help integers and enums. Also, even if we had default values, I guess I'd enforce a common idiom for handling optionals as this is also a good practice for preventing bugs.