drm/msm: switch to drmm_mode_config_init()

Switch to drmm_mode_config_init() instead of drm_mode_config_init().
Drop drm_mode_config_cleanup() calls.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/561654/
Signed-off-by: Rob Clark <robdclark@chromium.org>

Author: lumag

drivers/gpu/drm/msm/msm_drv.c

@@ -238,8 +238,6 @@ static int msm_drm_uninit(struct device *dev)
 	if (kms)
 		msm_disp_snapshot_destroy(ddev);
 
-	drm_mode_config_cleanup(ddev);
-
 	if (kms) {
 		pm_runtime_get_sync(dev);
 		msm_irq_uninstall(ddev);
@@ -440,11 +438,13 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 	might_lock(&priv->lru.lock);
 	fs_reclaim_release(GFP_KERNEL);
 
-	drm_mode_config_init(ddev);
+	ret = drmm_mode_config_init(ddev);
+	if (ret)
+		goto err_destroy_wq;
 
 	ret = msm_init_vram(ddev);
 	if (ret)
-		goto err_cleanup_mode_config;
+		goto err_destroy_wq;
 
 	dma_set_max_seg_size(dev, UINT_MAX);
 
@@ -553,8 +553,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 
 err_deinit_vram:
 	msm_deinit_vram(ddev);
-err_cleanup_mode_config:
-	drm_mode_config_cleanup(ddev);
+err_destroy_wq:
 	destroy_workqueue(priv->wq);
 err_put_dev:
 	drm_dev_put(ddev);