[Intel-gfx] [PATCH 53/59] drm/arc: Move to drm/tiny

[Daniel Vetter]

Hi Eugeniy,

Apologies, somehow I missed your mail. I looked at the code again, and I
think I fumbled something. Does the below diff help to prevent the issues?

Thanks, Daniel


diff --git a/drivers/gpu/drm/tiny/arcpgu.c b/drivers/gpu/drm/tiny/arcpgu.c
index 857812f25bec..33d812a5ad7f 100644
--- a/drivers/gpu/drm/tiny/arcpgu.c
+++ b/drivers/gpu/drm/tiny/arcpgu.c
@@ -228,6 +228,9 @@ static void arc_pgu_update(struct drm_simple_display_pipe *pipe,
 	struct arcpgu_drm_private *arcpgu;
 	struct drm_gem_cma_object *gem;
 
+	if (!pipe->plane.state->fb)
+		return;
+
 	arcpgu = pipe_to_arcpgu_priv(pipe);
 	gem = drm_fb_cma_get_gem_obj(pipe->plane.state->fb, 0);
 	arc_pgu_write(arcpgu, ARCPGU_REG_BUF0_ADDR, gem->paddr);
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch