linux-kernel - [PATCH] drm/fsl-dcu: use drm_mode_config

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Date:	Sat, 18 Jun 2016 19:15:43 -0700
From:	Stefan Agner <stefan@...er.ch>
To:	dri-devel@...ts.freedesktop.org
Cc:	meng.yi@....com, alison.wang@...escale.com,
	jianwei.wang.chn@...il.com, linux-kernel@...r.kernel.org,
	Stefan Agner <stefan@...er.ch>
Subject: [PATCH] drm/fsl-dcu: use drm_mode_config_cleanup on initialization errors

Commit 7566e247672d ("drm/fsl-dcu: handle initialization errors properly")
introduced error handling during initialization, but with a wrong cleanup
order.

Replace the error handling with the generic cleanup function
drm_mode_config_cleanup.

Signed-off-by: Stefan Agner <stefan@...er.ch>
---
 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c
index c564ec6..a6e4cd5 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c
@@ -37,23 +37,22 @@ int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev)
 
 	ret = fsl_dcu_drm_crtc_create(fsl_dev);
 	if (ret)
-		return ret;
+		goto err;
 
 	ret = fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc);
 	if (ret)
-		goto fail_encoder;
+		goto err;
 
 	ret = fsl_dcu_drm_connector_create(fsl_dev, &fsl_dev->encoder);
 	if (ret)
-		goto fail_connector;
+		goto err;
 
 	drm_mode_config_reset(fsl_dev->drm);
 	drm_kms_helper_poll_init(fsl_dev->drm);
 
 	return 0;
-fail_encoder:
-	fsl_dev->crtc.funcs->destroy(&fsl_dev->crtc);
-fail_connector:
-	fsl_dev->encoder.funcs->destroy(&fsl_dev->encoder);
+
+err:
+	drm_mode_config_cleanup(fsl_dev->drm);
 	return ret;
 }
-- 
2.8.3