Hi,
On Sat, May 26, 2018 at 08:24:19PM +0300, Laurent Pinchart wrote:
> From: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
>
> If we allocate the drm_device earlier we can just return the error code
> without the need to use goto.
> Do the unref of the drm_device as a last step when cleaning up. This will
> make the drm_device available longer for us and makes sure that we only
> free up the memory when all other cleanups have been already done.
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
-- Sebastian
> drivers/gpu/drm/omapdrm/omap_drv.c | 29 +++++++++++++----------------
> 1 file changed, 13 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
> index 5005ecc284d2..244ed3707589 100644
> --- a/drivers/gpu/drm/omapdrm/omap_drv.c
> +++ b/drivers/gpu/drm/omapdrm/omap_drv.c
> @@ -525,6 +525,14 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
>
> DBG("%s", dev_name(dev));
>
> + /* Allocate and initialize the DRM device. */
> + ddev = drm_dev_alloc(&omap_drm_driver, dev);
> + if (IS_ERR(ddev))
> + return PTR_ERR(ddev);
> +
> + priv->ddev = ddev;
> + ddev->dev_private = priv;
> +
> priv->dev = dev;
> priv->dss = omapdss_get_dss();
> priv->dispc = dispc_get_dispc(priv->dss);
> @@ -543,16 +551,6 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
> mutex_init(&priv->list_lock);
> INIT_LIST_HEAD(&priv->obj_list);
>
> - /* Allocate and initialize the DRM device. */
> - ddev = drm_dev_alloc(&omap_drm_driver, priv->dev);
> - if (IS_ERR(ddev)) {
> - ret = PTR_ERR(ddev);
> - goto err_destroy_wq;
> - }
> -
> - priv->ddev = ddev;
> - ddev->dev_private = priv;
> -
> /* Get memory bandwidth limits */
> if (priv->dispc_ops->get_memory_bandwidth_limit)
> priv->max_bandwidth =
> @@ -563,7 +561,7 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
> ret = omap_modeset_init(ddev);
> if (ret) {
> dev_err(priv->dev, "omap_modeset_init failed: ret=%d\n", ret);
> - goto err_free_drm_dev;
> + goto err_gem_deinit;
> }
>
> /* Initialize vblank handling, start with all CRTCs disabled. */
> @@ -599,14 +597,13 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
> err_cleanup_modeset:
> drm_mode_config_cleanup(ddev);
> omap_drm_irq_uninstall(ddev);
> -err_free_drm_dev:
> +err_gem_deinit:
> omap_gem_deinit(ddev);
> - drm_dev_unref(ddev);
> -err_destroy_wq:
> destroy_workqueue(priv->wq);
> omap_disconnect_dssdevs();
> err_crtc_uninit:
> omap_crtc_pre_uninit();
> + drm_dev_unref(ddev);
> return ret;
> }
>
> @@ -630,12 +627,12 @@ static void omapdrm_cleanup(struct omap_drm_private *priv)
> omap_drm_irq_uninstall(ddev);
> omap_gem_deinit(ddev);
>
> - drm_dev_unref(ddev);
> -
> destroy_workqueue(priv->wq);
>
> omap_disconnect_dssdevs();
> omap_crtc_pre_uninit();
> +
> + drm_dev_unref(ddev);
> }
>
> static int pdev_probe(struct platform_device *pdev)
> --
> Regards,
>
> Laurent Pinchart
>
> _______________________________________________
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> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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