On Wed, Apr 15, 2020 at 05:03:55PM +0200, Hans de Goede wrote:
> Hi,
>
> On 4/15/20 9:39 AM, Daniel Vetter wrote:
> > Allows us to drop the cleanup code on the floor.
> >
> > Sam noticed in his review:
> > > With this change we avoid calling pci_disable_device()
> > > twise in case vbox_mm_init() fails.
> > > Once in vbox_hw_fini() and once in the error path.
> >
> > v2: Include Sam's review remarks
> >
> > Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> > Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
> > ---
> > drivers/gpu/drm/vboxvideo/vbox_drv.c | 6 ++----
> > drivers/gpu/drm/vboxvideo/vbox_main.c | 7 +------
> > 2 files changed, 3 insertions(+), 10 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > index cfa4639c5142..cf2e3e6a2388 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> > @@ -55,13 +55,13 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > pci_set_drvdata(pdev, vbox);
> > mutex_init(&vbox->hw_mutex);
> > - ret = pci_enable_device(pdev);
> > + ret = pcim_enable_device(pdev);
> > if (ret)
> > return ret;
> > ret = vbox_hw_init(vbox);
> > if (ret)
> > - goto err_pci_disable;
> > + return ret;
> > ret = vbox_mm_init(vbox);
> > if (ret)
> > @@ -91,8 +91,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> > vbox_mm_fini(vbox);
> > err_hw_fini:
> > vbox_hw_fini(vbox);
> > -err_pci_disable:
> > - pci_disable_device(pdev);
> > return ret;
> > }
> > diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
> > index 9dcab115a261..1336ab9795fc 100644
> > --- a/drivers/gpu/drm/vboxvideo/vbox_main.c
> > +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
> > @@ -71,8 +71,6 @@ static void vbox_accel_fini(struct vbox_private *vbox)
> > for (i = 0; i < vbox->num_crtcs; ++i)
> > vbva_disable(&vbox->vbva_info[i], vbox->guest_pool, i);
> > -
> > - pci_iounmap(vbox->ddev.pdev, vbox->vbva_buffers);
> > }
> > /* Do we support the 4.3 plus mode hint reporting interface? */
>
> This seems to be missing the conversion of the iomap_range call to
> the devm equivalent ? :
>
> drivers/gpu/drm/vboxvideo/vbox_main.c
> 44: vbox->vbva_buffers = pci_iomap_range(vbox->ddev.pdev, 0, ...
pcim_enable_device is pure magic, it converts _all_ pci_ calls on that
device to the managed version. There's no other manged pci_ functions (ok
1-2 more, but they're rather special).
-Daniel
>
> Regards,
>
> Hans
>
>
>
>
>
> > @@ -125,7 +123,7 @@ int vbox_hw_init(struct vbox_private *vbox)
> > /* Create guest-heap mem-pool use 2^4 = 16 byte chunks */
> > vbox->guest_pool = gen_pool_create(4, -1);
> > if (!vbox->guest_pool)
> > - goto err_unmap_guest_heap;
> > + return -ENOMEM;
> > ret = gen_pool_add_virt(vbox->guest_pool,
> > (unsigned long)vbox->guest_heap,
> > @@ -168,8 +166,6 @@ int vbox_hw_init(struct vbox_private *vbox)
> > err_destroy_guest_pool:
> > gen_pool_destroy(vbox->guest_pool);
> > -err_unmap_guest_heap:
> > - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> > return ret;
> > }
> > @@ -177,5 +173,4 @@ void vbox_hw_fini(struct vbox_private *vbox)
> > {
> > vbox_accel_fini(vbox);
> > gen_pool_destroy(vbox->guest_pool);
> > - pci_iounmap(vbox->ddev.pdev, vbox->guest_heap);
> > }
> >
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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