From: Johan Hovold johan+linaro@kernel.org
commit c22f2ff8724b49dce2ae797e9fbf4bc0fa91112f upstream.
Make sure to unbind all subcomponents when binding the aggregate device fails.
Fixes: 9026e0d122ac ("drm: Add Allwinner A10 Display Engine support") Cc: stable@vger.kernel.org # 4.7 Cc: Maxime Ripard mripard@kernel.org Signed-off-by: Johan Hovold johan+linaro@kernel.org Signed-off-by: Maxime Ripard maxime@cerno.tech Link: https://patchwork.freedesktop.org/patch/msgid/20230306103242.4775-1-johan+li... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/sun4i/sun4i_drv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -95,12 +95,12 @@ static int sun4i_drv_bind(struct device /* drm_vblank_init calls kcalloc, which can fail */ ret = drm_vblank_init(drm, drm->mode_config.num_crtc); if (ret) - goto cleanup_mode_config; + goto unbind_all;
/* Remove early framebuffers (ie. simplefb) */ ret = drm_aperture_remove_framebuffers(false, &sun4i_drv_driver); if (ret) - goto cleanup_mode_config; + goto unbind_all;
sun4i_framebuffer_init(drm);
@@ -119,6 +119,8 @@ static int sun4i_drv_bind(struct device
finish_poll: drm_kms_helper_poll_fini(drm); +unbind_all: + component_unbind_all(dev, NULL); cleanup_mode_config: drm_mode_config_cleanup(drm); of_reserved_mem_device_release(dev);