drm/i915: Pin cursor bo and unpin old bo when setting cursor.

We also didn't track the cursor bo before and would leak a reference
when the cursor image was change.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 407edd5bf582..94981ee7b8bd 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -88,6 +88,7 @@ struct intel_crtc {
         struct drm_crtc base;
         int pipe;
         int plane;
+        struct drm_gem_object *cursor_bo;
         uint32_t cursor_addr;
         u8 lut_r[256], lut_g[256], lut_b[256];
         int dpms_mode;