[PATCH] staging: vboxvideo: Call fb_deferred_io_cleanup() on cleanup

[Hans de Goede]

On driver cleanup we need to call fb_deferred_io_cleanup() if build
with CONFIG_FB_DEFERRED_IO set.

Suggested-by: Michael Thayer <michael.thayer at oracle.com>
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 drivers/staging/vboxvideo/vbox_fb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/staging/vboxvideo/vbox_fb.c b/drivers/staging/vboxvideo/vbox_fb.c
index 35f6d9f8c203..485e1216cb74 100644
--- a/drivers/staging/vboxvideo/vbox_fb.c
+++ b/drivers/staging/vboxvideo/vbox_fb.c
@@ -342,6 +342,11 @@ void vbox_fbdev_fini(struct drm_device *dev)
 	struct vbox_fbdev *fbdev = vbox->fbdev;
 	struct vbox_framebuffer *afb = &fbdev->afb;
 
+#ifdef CONFIG_FB_DEFERRED_IO
+	if (fbdev->helper.fbdev && fbdev->helper.fbdev->fbdefio)
+		fb_deferred_io_cleanup(fbdev->helper.fbdev);
+#endif
+
 	drm_fb_helper_unregister_fbi(&fbdev->helper);
 
 	if (afb->obj) {
-- 
2.13.3