From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
We can't let visible set true while the fb is null, some places of
the code only check for visible to base its decisions.
Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_plane_helper.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c
index 827ec1a..fe4d1fb 100644
--- a/drivers/gpu/drm/drm_plane_helper.c
+++ b/drivers/gpu/drm/drm_plane_helper.c
@@ -127,6 +127,11 @@ int drm_plane_helper_check_update(struct drm_plane *plane,
return -ERANGE;
}
+ if (!fb) {
+ *visible = false;
+ return 0;
+ }
+
*visible = drm_rect_clip_scaled(src, dest, clip, hscale, vscale);
if (!*visible)
/*
--
1.9.3
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