drm/udl: Set struct drm_device.dma_dev

Set the dma_dev field provided by the DRM device. Required for PRIME
dma-buf import. Remove the driver's implementation.

Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Jani Nikula <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

1 files changed, 7 insertions, 7 deletions

diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
index 3ebe2ce55dfd..cbb0169cc030 100644
--- a/drivers/gpu/drm/udl/udl_main.c
+++ b/drivers/gpu/drm/udl/udl_main.c
@@ -308,12 +308,17 @@ int udl_init(struct udl_device *udl)
 {
 	struct drm_device *dev = &udl->drm;
 	int ret = -ENOMEM;
+	struct device *dma_dev;
 
 	DRM_DEBUG("\n");
 
-	udl->dmadev = usb_intf_get_dma_device(to_usb_interface(dev->dev));
-	if (!udl->dmadev)
+	dma_dev = usb_intf_get_dma_device(to_usb_interface(dev->dev));
+	if (dma_dev) {
+		drm_dev_set_dma_dev(dev, dma_dev);
+		put_device(dma_dev);
+	} else {
 		drm_warn(dev, "buffer sharing not supported"); /* not an error */
+	}
 
 	mutex_init(&udl->gem_lock);
 
@@ -343,18 +348,13 @@ int udl_init(struct udl_device *udl)
 err:
 	if (udl->urbs.count)
 		udl_free_urb_list(dev);
-	put_device(udl->dmadev);
 	DRM_ERROR("%d\n", ret);
 	return ret;
 }
 
 int udl_drop_usb(struct drm_device *dev)
 {
-	struct udl_device *udl = to_udl(dev);
-
 	udl_free_urb_list(dev);
-	put_device(udl->dmadev);
-	udl->dmadev = NULL;
 
 	return 0;
 }