nouveau: Unreference state/buffer objects on context/screen destruction.

- unreference state objects so that buffer objects are unreferenced and
eventually destroyed
- free channel at screen's destruction

Based on Krzysztof Smiechowicz's patch.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gallium/drivers/nv20/nv20_screen.c b/src/gallium/drivers/nv20/nv20_screen.c
index 4eeacd1afd5..a0973f1ebdc 100644
--- a/src/gallium/drivers/nv20/nv20_screen.c
+++ b/src/gallium/drivers/nv20/nv20_screen.c
@@ -115,6 +115,9 @@ nv20_screen_destroy(struct pipe_screen *pscreen)
 
 	nouveau_notifier_free(&screen->sync);
 	nouveau_grobj_free(&screen->kelvin);
+	nv04_surface_2d_takedown(&screen->eng2d);
+
+	nouveau_screen_fini(&screen->base);
 
 	FREE(pscreen);
 }