linux-kernel - [PATCH 21/46] dmaengine: bam_dma: use dmaenginem_async_device

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Date:   Fri,  3 Aug 2018 15:19:51 +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 21/46] dmaengine: bam_dma: 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_unregister_dma

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

diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
index 1617715aa6e0..d164892a8aa4 100644
--- a/drivers/dma/qcom/bam_dma.c
+++ b/drivers/dma/qcom/bam_dma.c
@@ -1332,7 +1332,7 @@ static int bam_dma_probe(struct platform_device *pdev)
 	bdev->common.device_tx_status = bam_tx_status;
 	bdev->common.dev = bdev->dev;
 
-	ret = dma_async_device_register(&bdev->common);
+	ret = dmaenginem_async_device_register(&bdev->common);
 	if (ret) {
 		dev_err(bdev->dev, "failed to register dma async device\n");
 		goto err_bam_channel_exit;
@@ -1341,7 +1341,7 @@ static int bam_dma_probe(struct platform_device *pdev)
 	ret = of_dma_controller_register(pdev->dev.of_node, bam_dma_xlate,
 					&bdev->common);
 	if (ret)
-		goto err_unregister_dma;
+		goto err_bam_channel_exit;
 
 	if (bdev->controlled_remotely) {
 		pm_runtime_disable(&pdev->dev);
@@ -1357,8 +1357,6 @@ static int bam_dma_probe(struct platform_device *pdev)
 
 	return 0;
 
-err_unregister_dma:
-	dma_async_device_unregister(&bdev->common);
 err_bam_channel_exit:
 	for (i = 0; i < bdev->num_channels; i++)
 		tasklet_kill(&bdev->channels[i].vc.task);
@@ -1378,7 +1376,6 @@ static int bam_dma_remove(struct platform_device *pdev)
 	pm_runtime_force_suspend(&pdev->dev);
 
 	of_dma_controller_free(pdev->dev.of_node);
-	dma_async_device_unregister(&bdev->common);
 
 	/* mask all interrupts for this execution environment */
 	writel_relaxed(0, bam_addr(bdev, 0,  BAM_IRQ_SRCS_MSK_EE));
-- 
2.17.1