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/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
index 0fbe17d..3f823c3 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.h
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -257,14 +257,14 @@
 /* should these be made into common util helpers?
  */
 
-static inline int objects_lookup(struct drm_device *dev,
+static inline int objects_lookup(
 		struct drm_file *filp, uint32_t pixel_format,
 		struct drm_gem_object **bos, const uint32_t *handles)
 {
 	int i, n = drm_format_num_planes(pixel_format);
 
 	for (i = 0; i < n; i++) {
-		bos[i] = drm_gem_object_lookup(dev, filp, handles[i]);
+		bos[i] = drm_gem_object_lookup(filp, handles[i]);
 		if (!bos[i])
 			goto fail;