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drm/omap: Allocate drm_device earlier and unref it as last step 

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@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Peter Ujfalusi 2018-02-12 11:44:36 +02:00 committed by Tomi Valkeinen
parent 5b394b2ddf
commit fb96b67c8a
1 changed files with 13 additions and 16 deletions
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29
drivers/gpu/drm/omapdrm/omap_drv.c
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@ -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 @@ err_cleanup_helpers:
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)