drm/i915: Fix not checking cursor and object sizes

Even if the fb is the same we should still check if the sizes are
valid to be set.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_display.c

@@ -11923,9 +11923,6 @@ intel_check_cursor_plane(struct drm_plane *plane,
 	if (!obj)
 		return 0;
 
-	if (fb == crtc->cursor->fb)
-		return 0;
-
 	/* Check for which cursor types we support */
 	crtc_w = drm_rect_width(&state->orig_dst);
 	crtc_h = drm_rect_height(&state->orig_dst);
@@ -11940,6 +11937,9 @@ intel_check_cursor_plane(struct drm_plane *plane,
 		return -ENOMEM;
 	}
 
+	if (fb == crtc->cursor->fb)
+		return 0;
+
 	/* we only need to pin inside GTT if cursor is non-phy */
 	mutex_lock(&dev->struct_mutex);
 	if (!INTEL_INFO(dev)->cursor_needs_physical && obj->tiling_mode) {