This is a note to let you know that I've just added the patch titled drm/sun4i: fix missing component unbind on bind errors to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-sun4i-fix-missing-component-unbind-on-bind-errors.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From c22f2ff8724b49dce2ae797e9fbf4bc0fa91112f Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan+linaro@xxxxxxxxxx> Date: Mon, 6 Mar 2023 11:32:42 +0100 Subject: drm/sun4i: fix missing component unbind on bind errors From: Johan Hovold <johan+linaro@xxxxxxxxxx> 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@xxxxxxxxxxxxxxx # 4.7 Cc: Maxime Ripard <mripard@xxxxxxxxxx> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20230306103242.4775-1-johan+linaro@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 @@ -94,12 +94,12 @@ 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); @@ -118,6 +118,8 @@ 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); Patches currently in stable-queue which might be from johan+linaro@xxxxxxxxxx are queue-5.15/drm-sun4i-fix-missing-component-unbind-on-bind-errors.patch queue-5.15/interconnect-fix-mem-leak-when-freeing-nodes.patch queue-5.15/interconnect-exynos-fix-node-leak-in-probe-pm-qos-error-path.patch