diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index be77a35a7a8e..38fbaadccfb7 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -314,6 +314,8 @@ int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id, struct msm_gem_object *msm_obj = to_msm_bo(obj); int ret = 0; + WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); + if (!msm_obj->domain[id].iova) { struct msm_drm_private *priv = obj->dev->dev_private; struct page **pages = get_pages(obj); @@ -345,6 +347,7 @@ int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint64_t *iova) * bo is deleted: */ if (msm_obj->domain[id].iova) { + might_lock(&obj->dev->struct_mutex); *iova = msm_obj->domain[id].iova; return 0; } |
