drm: Remove unused drm_device from drm_gem_object_lookup()

drm_gem_object_lookup() has never required the drm_device for its file
local translation of the user handle to the GEM object. Let's remove the
unused parameter and save some space.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: dri-devel@lists.freedesktop.org
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
[danvet: Fixup kerneldoc too.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index b4de18e..c046903 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -133,8 +133,7 @@
 		}
 
 		for (i = 0; i < exbuf->num_bo_handles; i++) {
-			gobj = drm_gem_object_lookup(dev,
-						     drm_file, bo_handles[i]);
+			gobj = drm_gem_object_lookup(drm_file, bo_handles[i]);
 			if (!gobj) {
 				drm_free_large(bo_handles);
 				drm_free_large(buflist);
@@ -345,7 +344,7 @@
 	struct drm_gem_object *gobj = NULL;
 	struct virtio_gpu_object *qobj = NULL;
 
-	gobj = drm_gem_object_lookup(dev, file_priv, ri->bo_handle);
+	gobj = drm_gem_object_lookup(file_priv, ri->bo_handle);
 	if (gobj == NULL)
 		return -ENOENT;
 
@@ -374,7 +373,7 @@
 	if (vgdev->has_virgl_3d == false)
 		return -ENOSYS;
 
-	gobj = drm_gem_object_lookup(dev, file, args->bo_handle);
+	gobj = drm_gem_object_lookup(file, args->bo_handle);
 	if (gobj == NULL)
 		return -ENOENT;
 
@@ -418,7 +417,7 @@
 	int ret;
 	u32 offset = args->offset;
 
-	gobj = drm_gem_object_lookup(dev, file, args->bo_handle);
+	gobj = drm_gem_object_lookup(file, args->bo_handle);
 	if (gobj == NULL)
 		return -ENOENT;
 
@@ -464,7 +463,7 @@
 	int ret;
 	bool nowait = false;
 
-	gobj = drm_gem_object_lookup(dev, file, args->handle);
+	gobj = drm_gem_object_lookup(file, args->handle);
 	if (gobj == NULL)
 		return -ENOENT;