[gnome-shell/wip/rstrode/rhel-7.9: 48/86] st/shadow: Check pipeline when painting

[Ray Strode <halfline src gnome org>]

commit 996d713bfbe372010fa77e0c000536276be3a970
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Jun 9 19:48:06 2020 +0200

    st/shadow: Check pipeline when painting
    
    We shouldn't simply assume that st_shadow_helper_update() has been
    called before paint() or that the pipeline was created successfully.

 src/st/st-shadow.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/src/st/st-shadow.c b/src/st/st-shadow.c
index 73aa1a3a27..880f7dc7b5 100644
--- a/src/st/st-shadow.c
+++ b/src/st/st-shadow.c
@@ -287,8 +287,9 @@ st_shadow_helper_paint (StShadowHelper  *helper,
                         ClutterActorBox *actor_box,
                         guint8           paint_opacity)
 {
-  _st_paint_shadow_with_opacity (helper->shadow,
-                                 helper->pipeline,
-                                 actor_box,
-                                 paint_opacity);
+  if (helper->pipeline != NULL)
+    _st_paint_shadow_with_opacity (helper->shadow,
+                                   helper->pipeline,
+                                   actor_box,
+                                   paint_opacity);
 }