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From:   Navid Emamdoost <navid.emamdoost@gmail.com>
Date:   Tue, 26 Nov 2019 11:50:44 -0600
Message-ID: <CAEkB2ER4dof02PcH6BDQoFNhkkds=zrPf+5-rSygUh=XU8H0zQ@mail.gmail.com>
Subject: Re: [PATCH] drm/nouveau: Fix memory leak in nouveau_bo_alloc
To:     David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
        dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org,
        Ben Skeggs <bskeggs@redhat.com>
Cc:     Navid Emamdoost <emamd001@umn.edu>,
        LKML <linux-kernel@vger.kernel.org>
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ping...

On Thu, Nov 21, 2019 at 12:09 PM Navid Emamdoost
<navid.emamdoost@gmail.com> wrote:
>
> On Mon, Oct 21, 2019 at 4:14 PM Navid Emamdoost
> <navid.emamdoost@gmail.com> wrote:
> >
> > In the implementation of nouveau_bo_alloc() if it fails to determine the
> > target page size via pi, then the allocated memory for nvbo should be
> > released.
> >
> > Fixes: 019cbd4a4feb ("drm/nouveau: Initialize GEM object before TTM object")
> > Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
>
> Would you please review this patch?
>
>
> Thanks,
> Navid.
>
> > ---
> >  drivers/gpu/drm/nouveau/nouveau_bo.c | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
> > index f8015e0318d7..18857cf44068 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_bo.c
> > +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
> > @@ -276,8 +276,10 @@ nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 flags,
> >                         break;
> >         }
> >
> > -       if (WARN_ON(pi < 0))
> > +       if (WARN_ON(pi < 0)) {
> > +               kfree(nvbo);
> >                 return ERR_PTR(-EINVAL);
> > +       }
> >
> >         /* Disable compression if suitable settings couldn't be found. */
> >         if (nvbo->comp && !vmm->page[pi].comp) {
> > --
> > 2.17.1
> >
>
>
> --
> Navid.


-- 
Navid.