| Message ID | 20200302222631.3861340-38-daniel.vetter@ffwll.ch (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm_device managed resources, v4 | expand |
On Mon, Mar 02, 2020 at 11:26:17PM +0100, Daniel Vetter wrote: > 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) > > 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 Acked-by: Sam Ravnborg <sam@ravnborg.org> > --- > drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 14 +++++--------- > 1 file changed, 5 insertions(+), 9 deletions(-) > > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c > index 20ecb1508a22..0f3eb392fe39 100644 > --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c > @@ -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 @@ static int rockchip_drm_bind(struct device *dev) > 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); > } > > -- > 2.24.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index 20ecb1508a22..0f3eb392fe39 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -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 @@ static int rockchip_drm_bind(struct device *dev) 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); }
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) 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 --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-)