[gtk/wip/chergert/glproto] fix assertion

[Christian Hergert <chergert src gnome org>]

commit 7ce858d0742fa5003a7dfa84dc63980d85e9d453
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jan 15 16:59:11 2021 -0800

    fix assertion

 gsk/next/gskglrenderjob.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gsk/next/gskglrenderjob.c b/gsk/next/gskglrenderjob.c
index 3d45bfb2a7..6c52a442a6 100644
--- a/gsk/next/gskglrenderjob.c
+++ b/gsk/next/gskglrenderjob.c
@@ -1839,10 +1839,10 @@ gsk_gl_render_job_visit_blurred_inset_shadow_node (GskGLRenderJob *job,
           outline_to_blur.corner[i].height *= scale_y;
         }
 
-      if (gsk_next_driver_create_render_target (job->driver,
-                                                texture_width, texture_height,
-                                                GL_NEAREST, GL_NEAREST,
-                                                &render_target))
+      if (!gsk_next_driver_create_render_target (job->driver,
+                                                 texture_width, texture_height,
+                                                 GL_NEAREST, GL_NEAREST,
+                                                 &render_target))
         g_assert_not_reached ();
 
       gsk_gl_render_state_save (&state, job);