[PATCH v3] staging: vboxvideo: Update driver to use drm_dev_register.

[Fabio Rafael da Rosa]

The use of load and unload hooks is deprecated. DRM drivers should
use drm_dev_alloc|drm_dev_init and drm_dev_register for initialization
and publishing.

Signed-off-by: Fabio Rafael da Rosa <fdr at pid42.net>
Reviewed-by: Nicholas Mc Guire <der.herr at hofr.at>
---
Changes in v2:
        - Replace drm_dev_unref (also depretated) by drm_dev_put
Changes in v3:
        - Add vbox_driver_unload to pci_remove hook so it can free
        all driver resources

 drivers/staging/vboxvideo/TODO        |  1 -
 drivers/staging/vboxvideo/vbox_drv.c  | 34 +++++++++++++++++++++++----
 drivers/staging/vboxvideo/vbox_drv.h  |  2 +-
 drivers/staging/vboxvideo/vbox_main.c |  2 +-
 4 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/vboxvideo/TODO b/drivers/staging/vboxvideo/TODO
index bd381d861ab3..468eea856ca6 100644
--- a/drivers/staging/vboxvideo/TODO
+++ b/drivers/staging/vboxvideo/TODO
@@ -1,6 +1,5 @@
 TODO:
 -Move the driver over to the atomic API
--Stop using old load / unload drm_driver hooks
 -Get a full review from the drm-maintainers on dri-devel done on this driver
 -Extend this TODO with the results of that review
 
diff --git a/drivers/staging/vboxvideo/vbox_drv.c b/drivers/staging/vboxvideo/vbox_drv.c
index e18642e5027e..d34f22e07772 100644
--- a/drivers/staging/vboxvideo/vbox_drv.c
+++ b/drivers/staging/vboxvideo/vbox_drv.c
@@ -51,14 +51,42 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	return drm_get_pci_dev(pdev, ent, &driver);
+	struct drm_device *dev = NULL;
+	int ret = 0;
+
+	dev = drm_dev_alloc(&driver, &pdev->dev);
+	if (IS_ERR(dev)) {
+		ret = PTR_ERR(dev);
+		goto err_drv_alloc;
+	}
+	dev->pdev = pdev;
+	pci_set_drvdata(pdev, dev);
+
+	ret = vbox_driver_load(dev);
+	if (ret)
+		goto err_vbox_driver_load;
+
+	ret = drm_dev_register(dev, 0);
+	if (ret)
+		goto err_drv_dev_register;
+
+	return ret;
+
+ err_drv_dev_register:
+	vbox_driver_unload(dev);
+ err_vbox_driver_load:
+	drm_dev_put(dev);
+ err_drv_alloc:
+	return ret;
 }
 
 static void vbox_pci_remove(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 
-	drm_put_dev(dev);
+	drm_dev_unregister(dev);
+	vbox_driver_unload(dev);
+	drm_dev_put(dev);
 }
 
 static int vbox_drm_freeze(struct drm_device *dev)
@@ -227,8 +255,6 @@ static struct drm_driver driver = {
 	    DRIVER_PRIME,
 	.dev_priv_size = 0,
 
-	.load = vbox_driver_load,
-	.unload = vbox_driver_unload,
 	.lastclose = vbox_driver_lastclose,
 	.master_set = vbox_master_set,
 	.master_drop = vbox_master_drop,
diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h
index eeac4f0cb2c6..594f84272957 100644
--- a/drivers/staging/vboxvideo/vbox_drv.h
+++ b/drivers/staging/vboxvideo/vbox_drv.h
@@ -126,7 +126,7 @@ struct vbox_private {
 #undef CURSOR_PIXEL_COUNT
 #undef CURSOR_DATA_SIZE
 
-int vbox_driver_load(struct drm_device *dev, unsigned long flags);
+int vbox_driver_load(struct drm_device *dev);
 void vbox_driver_unload(struct drm_device *dev);
 void vbox_driver_lastclose(struct drm_device *dev);
 
diff --git a/drivers/staging/vboxvideo/vbox_main.c b/drivers/staging/vboxvideo/vbox_main.c
index 9d2018cd544e..429f6a453619 100644
--- a/drivers/staging/vboxvideo/vbox_main.c
+++ b/drivers/staging/vboxvideo/vbox_main.c
@@ -350,7 +350,7 @@ static void vbox_hw_fini(struct vbox_private *vbox)
 	pci_iounmap(vbox->dev->pdev, vbox->guest_heap);
 }
 
-int vbox_driver_load(struct drm_device *dev, unsigned long flags)
+int vbox_driver_load(struct drm_device *dev)
 {
 	struct vbox_private *vbox;
 	int ret = 0;
-- 
2.17.0