diff options
Diffstat (limited to 'drivers/gpu/drm/drm_gem_cma_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem_cma_helper.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c index 9efabceed42e..ce063970d68c 100644 --- a/drivers/gpu/drm/drm_gem_cma_helper.c +++ b/drivers/gpu/drm/drm_gem_cma_helper.c @@ -487,9 +487,12 @@ static int drm_gem_cma_dmabuf_mmap(struct dma_buf *dmabuf, { struct drm_gem_cma_object *cma_obj = dmabuf->priv; struct drm_gem_object *gem_obj = &cma_obj->base; + struct drm_device *dev = gem_obj->dev; int ret; + mutex_lock(&dev->struct_mutex); ret = drm_gem_mmap_obj(gem_obj, gem_obj->size, vma); + mutex_unlock(&dev->struct_mutex); if (ret < 0) return ret; |