linux-kernel - [PATCH 28/46] dmaengine: rcar-dmac: use dmaenginem_async_device

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Message-Id: <20180803072016.21544-29-sjhuang@iluvatar.ai>
Date:   Fri,  3 Aug 2018 15:19:58 +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 28/46] dmaengine: rcar-dmac: use dmaenginem_async_device_register to simplify the code

Use dmaenginem_async_device_register to simplify the code:
	remove dma_async_device_unregister.

Signed-off-by: Huang Shijie <sjhuang@...vatar.ai>
---
 drivers/dma/sh/rcar-dmac.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 48ee35e2bce6..87130b3eef5c 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1884,7 +1884,7 @@ static int rcar_dmac_probe(struct platform_device *pdev)
 	 *
 	 * Default transfer size of 32 bytes requires 32-byte alignment.
 	 */
-	ret = dma_async_device_register(engine);
+	ret = dmaenginem_async_device_register(engine);
 	if (ret < 0)
 		goto error;
 
@@ -1898,10 +1898,7 @@ static int rcar_dmac_probe(struct platform_device *pdev)
 
 static int rcar_dmac_remove(struct platform_device *pdev)
 {
-	struct rcar_dmac *dmac = platform_get_drvdata(pdev);
-
 	of_dma_controller_free(pdev->dev.of_node);
-	dma_async_device_unregister(&dmac->engine);
 
 	pm_runtime_disable(&pdev->dev);
 
-- 
2.17.1