single rockchip fix. * 'drm-next' of https://github.com/markyzq/kernel-drm-rockchip: drm/rockchip: fix dma_alloc_attrs() error check
single rockchip fix. * 'drm-next' of https://github.com/markyzq/kernel-drm-rockchip: drm/rockchip: fix dma_alloc_attrs() error check