OMAPFB: fix releasing overlays

omapfb disables all the overlays when freeing resources, but it should
also remove those overlays from overlay managers.

Not doing so causes a crash if omapfb is unbound and bound, or omapfb
module is removed and loaded, while keeping omapdss around.

Fix this by calling unset_manager() for all overlays.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
index a04096a63cb1..ce8a70570756 100644
--- a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c
@@ -1837,6 +1837,9 @@ static void omapfb_free_resources(struct omapfb2_device *fbdev)
                 struct omap_overlay *ovl = fbdev->overlays[i];
 
                 ovl->disable(ovl);
+
+                if (ovl->manager)
+                        ovl->unset_manager(ovl);
         }
 
         for (i = 0; i < fbdev->num_fbs; i++)