Re: [PATCH] driver core: Fix an error handling path in fw_devlink_create_devlink()

[Dan Carpenter <dan.carpenter@linaro.org>]

On Mon, Jul 17, 2023 at 11:57:51AM -0700, Saravana Kannan wrote:
> > ---
> >  drivers/base/core.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/base/core.c b/drivers/base/core.c
> > index 3dff5037943e..854c1fab742c 100644
> > --- a/drivers/base/core.c
> > +++ b/drivers/base/core.c
> > @@ -2107,7 +2107,8 @@ static int fw_devlink_create_devlink(struct device *con,
> >             fwnode_ancestor_init_without_drv(sup_handle)) {
> >                 dev_dbg(con, "Not linking %pfwf - might never become dev\n",
> >                         sup_handle);
> > -               return -EINVAL;
> > +               ret = -EINVAL;
> > +               goto out;
> >         }
> >
> >         ret = -EAGAIN;

It would have been more obvious that put_device() is a no-op if this
ret = -EAGAIN were changed to "return -EAGAIN;".  That would probably
silence some sort of static checker warning...

regards,
dan carpenter