drm/imx: Replace drm_dev_unref with drm_dev_put

This patch unifies the naming of DRM functions for reference counting
of struct drm_device. The resulting code is more aligned with the rest
of the Linux kernel interfaces.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

drivers/gpu/drm/imx/imx-drm-core.c

@@ -229,7 +229,7 @@ static int imx_drm_bind(struct device *dev)
 	imxdrm = devm_kzalloc(dev, sizeof(*imxdrm), GFP_KERNEL);
 	if (!imxdrm) {
 		ret = -ENOMEM;
-		goto err_unref;
+		goto err_put;
 	}
 
 	imxdrm->drm = drm;
@@ -306,8 +306,8 @@ static int imx_drm_bind(struct device *dev)
 	component_unbind_all(drm->dev, drm);
 err_kms:
 	drm_mode_config_cleanup(drm);
-err_unref:
-	drm_dev_unref(drm);
+err_put:
+	drm_dev_put(drm);
 
 	return ret;
 }
@@ -327,7 +327,7 @@ static void imx_drm_unbind(struct device *dev)
 	component_unbind_all(drm->dev, drm);
 	dev_set_drvdata(dev, NULL);
 
-	drm_dev_unref(drm);
+	drm_dev_put(drm);
 }
 
 static const struct component_master_ops imx_drm_ops = {