[PATCH 37/46] dmaengine: imx-sdma: 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_register

Signed-off-by: Huang Shijie <sjhu...@iluvatar.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