[PATCH 13/46] dmaengine: sun4i-dma: use dmaenginem_async_device_register to simplify the code

[Huang Shijie]

Use dmaenginem_async_device_register to simplify the code:
   remove dma_async_device_unregister
   remove label err_dma_unregister

Signed-off-by: Huang Shijie <sjhu...@iluvatar.ai>
---
 drivers/dma/sun4i-dma.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/sun4i-dma.c b/drivers/dma/sun4i-dma.c
index f4ed3f17607c..c80a59c1fc38 100644
--- a/drivers/dma/sun4i-dma.c
+++ b/drivers/dma/sun4i-dma.c
@@ -1228,7 +1228,7 @@ static int sun4i_dma_probe(struct platform_device *pdev)
                goto err_clk_disable;
        }
 
-       ret = dma_async_device_register(&priv->slave);
+       ret = dmaenginem_async_device_register(&priv->slave);
        if (ret) {
                dev_warn(&pdev->dev, "Failed to register DMA engine device\n");
                goto err_clk_disable;
@@ -1238,15 +1238,13 @@ static int sun4i_dma_probe(struct platform_device *pdev)
                                         priv);
        if (ret) {
                dev_err(&pdev->dev, "of_dma_controller_register failed\n");
-               goto err_dma_unregister;
+               goto err_clk_disable;
        }
 
        dev_dbg(&pdev->dev, "Successfully probed SUN4I_DMA\n");
 
        return 0;
 
-err_dma_unregister:
-       dma_async_device_unregister(&priv->slave);
 err_clk_disable:
        clk_disable_unprepare(priv->clk);
        return ret;
@@ -1260,7 +1258,6 @@ static int sun4i_dma_remove(struct platform_device *pdev)
        disable_irq(priv->irq);
 
        of_dma_controller_free(pdev->dev.of_node);
-       dma_async_device_unregister(&priv->slave);
 
        clk_disable_unprepare(priv->clk);
 
-- 
2.17.1