> 
> On Sun, 2018-02-25 at 14:00 +0200, Tomas Winkler wrote:
> >     if (need_locality && chip->ops->relinquish_locality) {
> > -           chip->ops->relinquish_locality(chip, chip->locality);
> > +           /* this coud be on error path, don't override error code */
> > +           int l_rc = chip->ops->relinquish_locality(chip, chip-
> > >locality);
> > +
> > +           if (l_rc)
> > +                   dev_err(&chip->dev, "%s: relinquish_locality: error
> > %d\n",
> > +                           __func__, l_rc);
> > +
> >             chip->locality = -1;
> >     }
> 
> The 'l_rc' declaration causes NAK as I've stated before.

I will provide a sixth version that let us both down the tree

> 
> Why don't you just make a helper function:
> 
> static void tpm_relinquish_locality(struct tpm_chip *chip) {
>       int rc;
> 
>       if (!chip->ops->relinquish_locality)
>               return 0;
> 
>       rc = chip->ops->relinquish_locality(chip);
>       if (rc)
>               dev_err(&chip->dev, "%s: error %d\n", __func__, rc);
> 
>       chip->locality = -1;
> }
> 
> Then the original code would be simply:
> 
> if (need_locality)
>       tpm_relinquish_locality(chip);
> 
> /Jarkko

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