drm/ingenic: Use devm_drm_dev_alloc

Already using devm_drm_dev_init, so very simple replacment.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Paul Cercueil <paul@crapouillou.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-31-daniel.vetter@ffwll.ch

drivers/gpu/drm/ingenic/ingenic-drm.c

@@ -611,9 +611,10 @@ static int ingenic_drm_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
+	priv = devm_drm_dev_alloc(dev, &ingenic_drm_driver_data,
+				  struct ingenic_drm, drm);
+	if (IS_ERR(priv))
+		return PTR_ERR(priv);
 
 	priv->soc_info = soc_info;
 	priv->dev = dev;
@@ -622,13 +623,6 @@ static int ingenic_drm_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, priv);
 
-	ret = devm_drm_dev_init(dev, drm, &ingenic_drm_driver_data);
-	if (ret) {
-		kfree(priv);
-		return ret;
-	}
-	drmm_add_final_kfree(drm, priv);
-
 	ret = drmm_mode_config_init(drm);
 	if (ret)
 		return ret;