gma500: Fix leak of uncached page

This was reported a long time ago (and I apologize to whoever it was that
reported it as I've lost the original report).

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index c34adf9d910a..d5a6eab8227e 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -246,6 +246,7 @@ static int psb_driver_unload(struct drm_device *dev)
                 }
                 psb_gtt_takedown(dev);
                 if (dev_priv->scratch_page) {
+                        set_pages_wb(dev_priv->scratch_page, 1);
                         __free_page(dev_priv->scratch_page);
                         dev_priv->scratch_page = NULL;
                 }