Re: [PATCH 00/53] drm: Convert to platform remove callback returning void

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Hi,

for the whole series:

Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx>

Please see my comment on the patches to tiny/.

Let me know if you want me to merge this patchset into drm-misc-next.

Best regards
Thomas

Am 07.05.23 um 18:25 schrieb Uwe Kleine-König:
Hello,

this patch series adapts the platform drivers below drivers/gpu/drm
to use the .remove_new() callback. Compared to the traditional .remove()
callback .remove_new() returns no value. This is a good thing because
the driver core doesn't (and cannot) cope for errors during remove. The
only effect of a non-zero return value in .remove() is that the driver
core emits a warning. The device is removed anyhow and an early return
from .remove() usually yields a resource leak.

By changing the remove callback to return void driver authors cannot
reasonably (but wrongly) assume any more that there happens some kind of
cleanup later.

Best regards
Uwe

Uwe Kleine-König (53):
   drm/komeda: Convert to platform remove callback returning void
   drm/arm/hdlcd: Convert to platform remove callback returning void
   drm/arm/malidp: Convert to platform remove callback returning void
   drm/armada: Convert to platform remove callback returning void
   drm/aspeed: Convert to platform remove callback returning void
   drm/atmel-hlcdc: Convert to platform remove callback returning void
   drm/bridge: cdns-dsi: Convert to platform remove callback returning
     void
   drm/bridge: display-connector: Convert to platform remove callback
     returning void
   drm/bridge: fsl-ldb: Convert to platform remove callback returning
     void
   drm/imx/imx8*: Convert to platform remove callback returning void
   drm/bridge: lvds-codec: Convert to platform remove callback returning
     void
   drm/bridge: nwl-dsi: Convert to platform remove callback returning
     void
   drm/bridge: simple-bridge: Convert to platform remove callback
     returning void
   drm/bridge: synopsys: Convert to platform remove callback returning
     void
   drm/bridge: thc63lvd1024: Convert to platform remove callback
     returning void
   drm/bridge: tfp410: Convert to platform remove callback returning void
   drm/etnaviv: Convert to platform remove callback returning void
   drm/exynos: Convert to platform remove callback returning void
   drm/fsl-dcu: Convert to platform remove callback returning void
   drm/hisilicon: Convert to platform remove callback returning void
   drm/imx/dcss: Convert to platform remove callback returning void
   drm/imx/ipuv3: Convert to platform remove callback returning void
   drm/ingenic: Convert to platform remove callback returning void
   drm/kmb: Convert to platform remove callback returning void
   drm/lima: Convert to platform remove callback returning void
   drm/logicvc: Convert to platform remove callback returning void
   drm/mcde: Convert to platform remove callback returning void
   drm/mediatek: Convert to platform remove callback returning void
   drm/mediatek: Convert to platform remove callback returning void
   drm/meson: Convert to platform remove callback returning void
   drm/msm: Convert to platform remove callback returning void
   drm/mxsfb: Convert to platform remove callback returning void
   drm/nouveau: Convert to platform remove callback returning void
   drm/omap: Convert to platform remove callback returning void
   drm/panel: Convert to platform remove callback returning void
   drm/panfrost: Convert to platform remove callback returning void
   drm/rcar-du: Convert to platform remove callback returning void
   drm/rockchip: Convert to platform remove callback returning void
   drm/shmobile: Convert to platform remove callback returning void
   drm/sprd: Convert to platform remove callback returning void
   drm/sti: Convert to platform remove callback returning void
   drm/stm: Convert to platform remove callback returning void
   drm/sun4i: Convert to platform remove callback returning void
   drm/tegra: Convert to platform remove callback returning void
   drm/tests: helpers: Convert to platform remove callback returning void
   drm/tidss: Convert to platform remove callback returning void
   drm/tilcdc: Convert to platform remove callback returning void
   drm/tiny: Convert to platform remove callback returning void
   drm/tiny: Convert to platform remove callback returning void
   drm/tve200: Convert to platform remove callback returning void
   drm/v3d: Convert to platform remove callback returning void
   drm/vc4: Convert to platform remove callback returning void
   drm/xlnx/zynqmp_dpsub: Convert to platform remove callback returning
     void

  drivers/gpu/drm/arm/display/komeda/komeda_drv.c     | 5 ++---
  drivers/gpu/drm/arm/hdlcd_drv.c                     | 5 ++---
  drivers/gpu/drm/arm/malidp_drv.c                    | 5 ++---
  drivers/gpu/drm/armada/armada_crtc.c                | 5 ++---
  drivers/gpu/drm/armada/armada_drv.c                 | 5 ++---
  drivers/gpu/drm/aspeed/aspeed_gfx_drv.c             | 6 ++----
  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c        | 6 ++----
  drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c      | 6 ++----
  drivers/gpu/drm/bridge/display-connector.c          | 6 ++----
  drivers/gpu/drm/bridge/fsl-ldb.c                    | 6 ++----
  drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c         | 6 ++----
  drivers/gpu/drm/bridge/imx/imx8qxp-ldb-drv.c        | 6 ++----
  drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c | 6 ++----
  drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c     | 6 ++----
  drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c        | 6 ++----
  drivers/gpu/drm/bridge/lvds-codec.c                 | 6 ++----
  drivers/gpu/drm/bridge/nwl-dsi.c                    | 5 ++---
  drivers/gpu/drm/bridge/simple-bridge.c              | 6 ++----
  drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c | 6 ++----
  drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c       | 6 ++----
  drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c  | 6 ++----
  drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c | 6 ++----
  drivers/gpu/drm/bridge/thc63lvd1024.c               | 6 ++----
  drivers/gpu/drm/bridge/ti-tfp410.c                  | 6 ++----
  drivers/gpu/drm/etnaviv/etnaviv_drv.c               | 6 ++----
  drivers/gpu/drm/etnaviv/etnaviv_gpu.c               | 5 ++---
  drivers/gpu/drm/exynos/exynos5433_drm_decon.c       | 6 ++----
  drivers/gpu/drm/exynos/exynos7_drm_decon.c          | 6 ++----
  drivers/gpu/drm/exynos/exynos_dp.c                  | 6 ++----
  drivers/gpu/drm/exynos/exynos_drm_drv.c             | 5 ++---
  drivers/gpu/drm/exynos/exynos_drm_dsi.c             | 6 ++----
  drivers/gpu/drm/exynos/exynos_drm_fimc.c            | 6 ++----
  drivers/gpu/drm/exynos/exynos_drm_fimd.c            | 6 ++----
  drivers/gpu/drm/exynos/exynos_drm_g2d.c             | 6 ++----
  drivers/gpu/drm/exynos/exynos_drm_gsc.c             | 6 ++----
  drivers/gpu/drm/exynos/exynos_drm_mic.c             | 6 ++----
  drivers/gpu/drm/exynos/exynos_drm_rotator.c         | 6 ++----
  drivers/gpu/drm/exynos/exynos_drm_scaler.c          | 6 ++----
  drivers/gpu/drm/exynos/exynos_hdmi.c                | 6 ++----
  drivers/gpu/drm/exynos/exynos_mixer.c               | 6 ++----
  drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c           | 6 ++----
  drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c        | 6 ++----
  drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c     | 5 ++---
  drivers/gpu/drm/imx/dcss/dcss-drv.c                 | 6 ++----
  drivers/gpu/drm/imx/ipuv3/dw_hdmi-imx.c             | 6 ++----
  drivers/gpu/drm/imx/ipuv3/imx-drm-core.c            | 5 ++---
  drivers/gpu/drm/imx/ipuv3/imx-ldb.c                 | 5 ++---
  drivers/gpu/drm/imx/ipuv3/imx-tve.c                 | 5 ++---
  drivers/gpu/drm/imx/ipuv3/ipuv3-crtc.c              | 5 ++---
  drivers/gpu/drm/imx/ipuv3/parallel-display.c        | 6 ++----
  drivers/gpu/drm/ingenic/ingenic-drm-drv.c           | 6 ++----
  drivers/gpu/drm/ingenic/ingenic-ipu.c               | 5 ++---
  drivers/gpu/drm/kmb/kmb_drv.c                       | 5 ++---
  drivers/gpu/drm/lima/lima_drv.c                     | 5 ++---
  drivers/gpu/drm/logicvc/logicvc_drm.c               | 6 ++----
  drivers/gpu/drm/mcde/mcde_drv.c                     | 6 ++----
  drivers/gpu/drm/mcde/mcde_dsi.c                     | 6 ++----
  drivers/gpu/drm/mediatek/mtk_cec.c                  | 5 ++---
  drivers/gpu/drm/mediatek/mtk_disp_aal.c             | 6 ++----
  drivers/gpu/drm/mediatek/mtk_disp_ccorr.c           | 6 ++----
  drivers/gpu/drm/mediatek/mtk_disp_color.c           | 6 ++----
  drivers/gpu/drm/mediatek/mtk_disp_gamma.c           | 6 ++----
  drivers/gpu/drm/mediatek/mtk_disp_merge.c           | 6 ++----
  drivers/gpu/drm/mediatek/mtk_disp_ovl.c             | 6 ++----
  drivers/gpu/drm/mediatek/mtk_disp_rdma.c            | 6 ++----
  drivers/gpu/drm/mediatek/mtk_dp.c                   | 6 ++----
  drivers/gpu/drm/mediatek/mtk_dpi.c                  | 6 ++----
  drivers/gpu/drm/mediatek/mtk_drm_drv.c              | 6 ++----
  drivers/gpu/drm/mediatek/mtk_dsi.c                  | 6 ++----
  drivers/gpu/drm/mediatek/mtk_hdmi.c                 | 5 ++---
  drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c             | 6 ++----
  drivers/gpu/drm/mediatek/mtk_mdp_rdma.c             | 5 ++---
  drivers/gpu/drm/meson/meson_drv.c                   | 6 ++----
  drivers/gpu/drm/meson/meson_dw_hdmi.c               | 6 ++----
  drivers/gpu/drm/msm/adreno/adreno_device.c          | 5 ++---
  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c             | 6 ++----
  drivers/gpu/drm/msm/disp/mdp4/mdp4_kms.c            | 6 ++----
  drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c            | 5 ++---
  drivers/gpu/drm/msm/dp/dp_display.c                 | 6 ++----
  drivers/gpu/drm/msm/dsi/dsi.c                       | 6 ++----
  drivers/gpu/drm/msm/hdmi/hdmi.c                     | 6 ++----
  drivers/gpu/drm/msm/hdmi/hdmi_phy.c                 | 6 ++----
  drivers/gpu/drm/msm/msm_drv.c                       | 6 ++----
  drivers/gpu/drm/msm/msm_mdss.c                      | 6 ++----
  drivers/gpu/drm/mxsfb/lcdif_drv.c                   | 6 ++----
  drivers/gpu/drm/mxsfb/mxsfb_drv.c                   | 6 ++----
  drivers/gpu/drm/nouveau/nouveau_platform.c          | 5 ++---
  drivers/gpu/drm/omapdrm/dss/dispc.c                 | 5 ++---
  drivers/gpu/drm/omapdrm/dss/dsi.c                   | 6 ++----
  drivers/gpu/drm/omapdrm/dss/dss.c                   | 6 ++----
  drivers/gpu/drm/omapdrm/dss/hdmi4.c                 | 5 ++---
  drivers/gpu/drm/omapdrm/dss/hdmi5.c                 | 5 ++---
  drivers/gpu/drm/omapdrm/dss/venc.c                  | 5 ++---
  drivers/gpu/drm/omapdrm/omap_dmm_tiler.c            | 9 +++------
  drivers/gpu/drm/omapdrm/omap_drv.c                  | 6 ++----
  drivers/gpu/drm/panel/panel-lvds.c                  | 6 ++----
  drivers/gpu/drm/panel/panel-seiko-43wvf1g.c         | 6 ++----
  drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c     | 6 ++----
  drivers/gpu/drm/panel/panel-simple.c                | 6 ++----
  drivers/gpu/drm/panfrost/panfrost_drv.c             | 5 ++---
  drivers/gpu/drm/rcar-du/rcar_cmm.c                  | 6 ++----
  drivers/gpu/drm/rcar-du/rcar_du_drv.c               | 6 ++----
  drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c              | 6 ++----
  drivers/gpu/drm/rcar-du/rcar_lvds.c                 | 6 ++----
  drivers/gpu/drm/rcar-du/rcar_mipi_dsi.c             | 6 ++----
  drivers/gpu/drm/rcar-du/rzg2l_mipi_dsi.c            | 6 ++----
  drivers/gpu/drm/rockchip/analogix_dp-rockchip.c     | 6 ++----
  drivers/gpu/drm/rockchip/cdn-dp-core.c              | 6 ++----
  drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c     | 6 ++----
  drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c         | 6 ++----
  drivers/gpu/drm/rockchip/inno_hdmi.c                | 6 ++----
  drivers/gpu/drm/rockchip/rk3066_hdmi.c              | 6 ++----
  drivers/gpu/drm/rockchip/rockchip_drm_drv.c         | 6 ++----
  drivers/gpu/drm/rockchip/rockchip_lvds.c            | 6 ++----
  drivers/gpu/drm/rockchip/rockchip_vop2_reg.c        | 6 ++----
  drivers/gpu/drm/rockchip/rockchip_vop_reg.c         | 6 ++----
  drivers/gpu/drm/shmobile/shmob_drm_drv.c            | 6 ++----
  drivers/gpu/drm/sprd/sprd_dpu.c                     | 6 ++----
  drivers/gpu/drm/sprd/sprd_drm.c                     | 5 ++---
  drivers/gpu/drm/sprd/sprd_dsi.c                     | 6 ++----
  drivers/gpu/drm/sti/sti_compositor.c                | 5 ++---
  drivers/gpu/drm/sti/sti_drv.c                       | 6 ++----
  drivers/gpu/drm/sti/sti_dvo.c                       | 5 ++---
  drivers/gpu/drm/sti/sti_hda.c                       | 5 ++---
  drivers/gpu/drm/sti/sti_hdmi.c                      | 6 ++----
  drivers/gpu/drm/sti/sti_hqvdp.c                     | 5 ++---
  drivers/gpu/drm/sti/sti_tvout.c                     | 5 ++---
  drivers/gpu/drm/stm/drv.c                           | 6 ++----
  drivers/gpu/drm/stm/dw_mipi_dsi-stm.c               | 6 ++----
  drivers/gpu/drm/sun4i/sun4i_backend.c               | 6 ++----
  drivers/gpu/drm/sun4i/sun4i_drv.c                   | 6 ++----
  drivers/gpu/drm/sun4i/sun4i_frontend.c              | 6 ++----
  drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c              | 6 ++----
  drivers/gpu/drm/sun4i/sun4i_tcon.c                  | 6 ++----
  drivers/gpu/drm/sun4i/sun4i_tv.c                    | 6 ++----
  drivers/gpu/drm/sun4i/sun6i_drc.c                   | 6 ++----
  drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c              | 6 ++----
  drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c               | 6 ++----
  drivers/gpu/drm/sun4i/sun8i_mixer.c                 | 6 ++----
  drivers/gpu/drm/sun4i/sun8i_tcon_top.c              | 6 ++----
  drivers/gpu/drm/tegra/dpaux.c                       | 6 ++----
  drivers/gpu/drm/tests/drm_kunit_helpers.c           | 5 ++---
  drivers/gpu/drm/tidss/tidss_drv.c                   | 6 ++----
  drivers/gpu/drm/tilcdc/tilcdc_panel.c               | 6 ++----
  drivers/gpu/drm/tiny/arcpgu.c                       | 6 ++----
  drivers/gpu/drm/tiny/ofdrm.c                        | 6 ++----
  drivers/gpu/drm/tiny/simpledrm.c                    | 6 ++----
  drivers/gpu/drm/tve200/tve200_drv.c                 | 6 ++----
  drivers/gpu/drm/v3d/v3d_drv.c                       | 6 ++----
  drivers/gpu/drm/vc4/vc4_crtc.c                      | 5 ++---
  drivers/gpu/drm/vc4/vc4_dpi.c                       | 5 ++---
  drivers/gpu/drm/vc4/vc4_drv.c                       | 6 ++----
  drivers/gpu/drm/vc4/vc4_dsi.c                       | 6 ++----
  drivers/gpu/drm/vc4/vc4_hdmi.c                      | 5 ++---
  drivers/gpu/drm/vc4/vc4_hvs.c                       | 5 ++---
  drivers/gpu/drm/vc4/vc4_txp.c                       | 5 ++---
  drivers/gpu/drm/vc4/vc4_v3d.c                       | 5 ++---
  drivers/gpu/drm/vc4/vc4_vec.c                       | 5 ++---
  drivers/gpu/drm/xlnx/zynqmp_dpsub.c                 | 6 ++----
  159 files changed, 319 insertions(+), 597 deletions(-)


base-commit: 457391b0380335d5e9a5babdec90ac53928b23b4

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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