drm/nouveau: fix mtrr cleanup path

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 5f8f95d40395..5c48b1e02ca4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -253,7 +253,7 @@ nouveau_mem_close(struct drm_device *dev)
                 drm_mtrr_del(dev_priv->fb_mtrr,
                              pci_resource_start(dev->pdev, 1),
                              pci_resource_len(dev->pdev, 1), DRM_MTRR_WC);
-                dev_priv->fb_mtrr = 0;
+                dev_priv->fb_mtrr = -1;
         }
 }