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drm/rockchip: Drop explicit drm_mode_config_cleanup call 

It's (almost, there's some iommu stuff without significance) right
above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: Another driver with a bit much devm_kzalloc, which should
probably use drmm_kzalloc instead ...

v2: Explain why this cleanup is possible (Laurent).

v3: Jump out at the right label (Francesco)

v4: Try again, kbuild caught that I didn't build test this properly
...

v5: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Francesco Lavra <francescolavra.fl@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-38-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2020-03-23 15:49:36 +01:00
parent b570e88d88
commit 56e35f85ba
1 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
View File

@ -135,14 +135,16 @@ static int rockchip_drm_bind(struct device *dev)
if (ret)
goto err_free;
drm_mode_config_init(drm_dev);
ret = drmm_mode_config_init(drm_dev);
if (ret)
goto err_iommu_cleanup;
rockchip_drm_mode_config_init(drm_dev);
/* Try to bind all sub drivers. */
ret = component_bind_all(dev, drm_dev);
if (ret)
goto err_mode_config_cleanup;
goto err_iommu_cleanup;
ret = drm_vblank_init(drm_dev, drm_dev->mode_config.num_crtc);
if (ret)
@ -173,12 +175,9 @@ err_kms_helper_poll_fini:
rockchip_drm_fbdev_fini(drm_dev);
err_unbind_all:
component_unbind_all(dev, drm_dev);
err_mode_config_cleanup:
drm_mode_config_cleanup(drm_dev);
err_iommu_cleanup:
rockchip_iommu_cleanup(drm_dev);
err_free:
drm_dev->dev_private = NULL;
dev_set_drvdata(dev, NULL);
drm_dev_put(drm_dev);
return ret;
}
@ -194,11 +193,8 @@ static void rockchip_drm_unbind(struct device *dev)
drm_atomic_helper_shutdown(drm_dev);
component_unbind_all(dev, drm_dev);
drm_mode_config_cleanup(drm_dev);
rockchip_iommu_cleanup(drm_dev);
drm_dev->dev_private = NULL;
dev_set_drvdata(dev, NULL);
drm_dev_put(drm_dev);
}