[net-next v3 2/6] net: dcb: add new apptrust attribute

[Daniel.Machon at microchip.com]

> > +     if (ops->dcbnl_getapptrust) {
> > +             u8 selectors[IEEE_8021QAZ_APP_SEL_MAX + 1] = {0};
> > +             int nselectors;
> > +
> > +             apptrust = nla_nest_start(skb, DCB_ATTR_DCB_APP_TRUST_TABLE);
> > +             if (!app)
> > +                     return -EMSGSIZE;
> > +
> > +             err = ops->dcbnl_getapptrust(netdev, selectors, &nselectors);
> > +             if (err)
> > +                     return -EMSGSIZE;
> 
> This should return the error coming from the driver instead of
> -EMSGSIZE.

Hmm. The question is whether we should return at all if dcbnl_getapptrust()
fails, or just continue to fill whatever other ieee information is available?
Seems to be like the rest of the code in ieee_fill() just ignore that error.

> 
> Also, it should cancel the nest before returning.

Ack.