Commits
Daniel Kurtz committed 4b9a90c0b37
drm/rockchip: fix dma_alloc_attrs() error check dma_alloc_attrs() returns NULL if it cannot allocate a dma buffer (or mapping), not a negative error code. Rerported-by: Pawel Osciak <posciak@chromium.org> Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Mark Yao <mark.yao@rock-chips.com>