1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem_debug.c b/drivers/gpu/drm/i915/i915_gem_debug.c
index 131c088f8c8..8d0b943e2c5 100644
--- a/drivers/gpu/drm/i915/i915_gem_debug.c
+++ b/drivers/gpu/drm/i915/i915_gem_debug.c
@@ -105,12 +105,14 @@ i915_dump_lru(struct drm_device *dev, const char *where)
         struct drm_i915_gem_object      *obj_priv;
 
         DRM_INFO("active list %s {\n", where);
+        spin_lock(&dev_priv->mm.active_list_lock);
         list_for_each_entry(obj_priv, &dev_priv->mm.active_list,
                             list)
         {
                 DRM_INFO("    %p: %08x\n", obj_priv,
                          obj_priv->last_rendering_seqno);
         }
+        spin_unlock(&dev_priv->mm.active_list_lock);
         DRM_INFO("}\n");
         DRM_INFO("flushing list %s {\n", where);
         list_for_each_entry(obj_priv, &dev_priv->mm.flushing_list,