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drm/sun4i: fix missing component unbind on bind errors

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Make sure to unbind all subcomponents when binding the aggregate device
fails.

Fixes: 9026e0d122 ("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+linaro@kernel.org
This commit is contained in:
Johan Hovold 2023-03-06 11:32:42 +01:00 committed by Maxime Ripard
parent 5c8cf1664f
commit c22f2ff872
No known key found for this signature in database
GPG key ID: E3EF0D6F671851C5
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/sun4i/sun4i_drv.c
View file

@ -95,12 +95,12 @@ static int sun4i_drv_bind(struct device *dev)
/* 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 *dev)
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);