Re: [PATCH 1/1] drm/amdgpu: Convert to using devm_drm_dev_alloc()

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On Sat, Sep 05, 2020 at 11:50:05AM -0400, Alex Deucher wrote:
> On Thu, Sep 3, 2020 at 9:22 PM Luben Tuikov <luben.tuikov@xxxxxxx> wrote:
> >
> > Convert to using devm_drm_dev_alloc(),
> > as drm_dev_init() is going away.
> >
> > Signed-off-by: Luben Tuikov <luben.tuikov@xxxxxxx>
> 
> I think we can drop the final drm_put in the error case?  I think the
> unwinding in current devm code should take care of it.

Same applies for the pci remove hook too.
-Daniel
> 
> Alex
> 
> > ---
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 11 +++--------
> >  1 file changed, 3 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> > index 146a85c8df1c..06d994187c24 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> > @@ -1142,18 +1142,13 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
> >         if (ret)
> >                 return ret;
> >
> > -       adev = kzalloc(sizeof(*adev), GFP_KERNEL);
> > -       if (!adev)
> > -               return -ENOMEM;
> > +       adev = devm_drm_dev_alloc(&pdev->dev, &kms_driver, typeof(*adev), ddev);
> > +       if (IS_ERR(adev))
> > +               return PTR_ERR(adev);
> >
> >         adev->dev  = &pdev->dev;
> >         adev->pdev = pdev;
> >         ddev = adev_to_drm(adev);
> > -       ret = drm_dev_init(ddev, &kms_driver, &pdev->dev);
> > -       if (ret)
> > -               goto err_free;
> > -
> > -       drmm_add_final_kfree(ddev, adev);
> >
> >         if (!supports_atomic)
> >                 ddev->driver_features &= ~DRIVER_ATOMIC;
> > --
> > 2.28.0.394.ge197136389
> >
> > _______________________________________________
> > amd-gfx mailing list
> > amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.freedesktop.org/mailman/listinfo/amd-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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