--- a/sys/dev/drm/amd/amdgpu/amdgpu_fb.c
+++ b/sys/dev/drm/amd/amdgpu/amdgpu_fb.c
@@ -370,6 +370,7 @@
 	ret = drm_fb_helper_init(adev->ddev, &rfbdev->helper,
 				 AMDGPUFB_CONN_LIMIT);
 	if (ret) {
+		adev->mode_info.rfbdev = NULL;
 		kfree(rfbdev);
 		return ret;
 	}