linux-kernel - [PATCH 37/46] dmaengine: imx-sdma: use dmaenginem_async_device

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Message-Id: <20180803072016.21544-38-sjhuang@iluvatar.ai>
Date:   Fri,  3 Aug 2018 15:20:07 +0800
From:   Huang Shijie <sjhuang@...vatar.ai>
To:     vkoul@...nel.org
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        dave.jiang@...el.com, radhey.shyam.pandey@...inx.com,
        appana.durga.rao@...inx.com, jmkrzyszt@...il.com,
        gomonovych@...il.com, peter.ujfalusi@...com, keescook@...omium.org,
        horms+renesas@...ge.net.au, geert+renesas@...der.be,
        shawnguo@...nel.org, baoyou.xie@...aro.org,
        michal.simek@...inx.com, baohua@...nel.org,
        ludovic.desroches@...rochip.com, linus.walleij@...aro.org,
        david.brown@...aro.org, Huang Shijie <sjhuang@...vatar.ai>
Subject: [PATCH 37/46] dmaengine: imx-sdma: use dmaenginem_async_device_register to simplify the code

Use dmaenginem_async_device_register to simplify the code:
	remove dma_async_device_unregister.
	remove label err_register

Signed-off-by: Huang Shijie <sjhuang@...vatar.ai>
---
 drivers/dma/imx-sdma.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index b4ec2d20e661..3ee28d044e3c 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -2062,7 +2062,7 @@ static int sdma_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, sdma);
 
-	ret = dma_async_device_register(&sdma->dma_device);
+	ret = dmaenginem_async_device_register(&sdma->dma_device);
 	if (ret) {
 		dev_err(&pdev->dev, "unable to register\n");
 		goto err_init;
@@ -2072,7 +2072,7 @@ static int sdma_probe(struct platform_device *pdev)
 		ret = of_dma_controller_register(np, sdma_xlate, sdma);
 		if (ret) {
 			dev_err(&pdev->dev, "failed to register controller\n");
-			goto err_register;
+			goto err_init;
 		}
 
 		spba_bus = of_find_compatible_node(NULL, NULL, "fsl,spba-bus");
@@ -2086,8 +2086,6 @@ static int sdma_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_register:
-	dma_async_device_unregister(&sdma->dma_device);
 err_init:
 	kfree(sdma->script_addrs);
 err_irq:
@@ -2103,7 +2101,6 @@ static int sdma_remove(struct platform_device *pdev)
 	int i;
 
 	devm_free_irq(&pdev->dev, sdma->irq, sdma);
-	dma_async_device_unregister(&sdma->dma_device);
 	kfree(sdma->script_addrs);
 	clk_unprepare(sdma->clk_ahb);
 	clk_unprepare(sdma->clk_ipg);
-- 
2.17.1