drm: use anon-inode instead of relying on cdevs

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / drm_stub.c

diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 5b60d8a..ac33a74 100644 (file)
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -491,8 +491,15 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
        mutex_init(&dev->struct_mutex);
        mutex_init(&dev->ctxlist_mutex);
 
-       if (drm_ht_create(&dev->map_hash, 12))
+       dev->anon_inode = drm_fs_inode_new();
+       if (IS_ERR(dev->anon_inode)) {
+               ret = PTR_ERR(dev->anon_inode);
+               DRM_ERROR("Cannot allocate anonymous inode: %d\n", ret);
                goto err_free;
+       }
+
+       if (drm_ht_create(&dev->map_hash, 12))
+               goto err_inode;
 
        ret = drm_ctxbitmap_init(dev);
        if (ret) {
@@ -514,6 +521,8 @@ err_ctxbitmap:
        drm_ctxbitmap_cleanup(dev);
 err_ht:
        drm_ht_remove(&dev->map_hash);
+err_inode:
+       drm_fs_inode_free(dev->anon_inode);
 err_free:
        kfree(dev);
        return NULL;
@@ -541,6 +550,7 @@ void drm_dev_free(struct drm_device *dev)
 
        drm_ctxbitmap_cleanup(dev);
        drm_ht_remove(&dev->map_hash);
+       drm_fs_inode_free(dev->anon_inode);
 
        kfree(dev->devname);
        kfree(dev);