Re: [PATCH v1] drm/bochs: fix an issue of ioremap() leak

[Andy Shevchenko]

On Wed, Apr 22, 2020 at 4:52 PM Dejin Zheng <zhengdejin5@xxxxxxxxx> wrote:
>
> On Tue, Apr 21, 2020 at 08:24:24PM +0300, Andy Shevchenko wrote:
> > On Tue, Apr 21, 2020 at 7:45 PM Dejin Zheng <zhengdejin5@xxxxxxxxx> wrote:
> > >
> > > It forgot to call bochs_hw_fini() to release related resources when
> > > bochs_pci_probe() fail. eg: io virtual address get by ioremap().
> >
> > Good start, although I think the best is to switch this driver to use
> > pcim_*() functions and drop tons of legacy code.
> >
> Andy, thanks for your encouragement, I think we might be able to fix this
> issue first, after that, drop tons of legacy code by pcim_*() functions.
> Do you think it is ok?

It's really up to maintainer. I'm not the one here.

> > > Fixes: 81da8c3b8d3df6 ("drm/bochs: add drm_driver.release callback.")
> > > CC: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> > > Signed-off-by: Dejin Zheng <zhengdejin5@xxxxxxxxx>
> > > ---
> > >  drivers/gpu/drm/bochs/bochs_drv.c | 1 +
> > >  1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
> > > index addb0568c1af..210a60135c8a 100644
> > > --- a/drivers/gpu/drm/bochs/bochs_drv.c
> > > +++ b/drivers/gpu/drm/bochs/bochs_drv.c
> > > @@ -138,6 +138,7 @@ static int bochs_pci_probe(struct pci_dev *pdev,
> > >         return ret;
> > >
> > >  err_unload:
> > > +       bochs_hw_fini(dev);
> > >         bochs_unload(dev);
> > >  err_free_dev:
> > >         drm_dev_put(dev);
> > > --
> > > 2.25.0
> > >
> >
> >
> > --
> > With Best Regards,
> > Andy Shevchenko



-- 
With Best Regards,
Andy Shevchenko