@@ -408,12 +408,9 @@ int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
struct drm_gem_object *gem;
struct tegra_bo *bo;
- mutex_lock(&drm->struct_mutex);
-
gem = drm_gem_object_lookup(drm, file, handle);
if (!gem) {
dev_err(drm->dev, "failed to lookup GEM object\n");
- mutex_unlock(&drm->struct_mutex);
return -EINVAL;
}
@@ -421,9 +418,7 @@ int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
*offset = drm_vma_node_offset_addr(&bo->gem.vma_node);
- drm_gem_object_unreference(gem);
-
- mutex_unlock(&drm->struct_mutex);
+ drm_gem_object_unreference_unlocked(gem);
return 0;
}