[PATCH 38/46] dmaengine: imx-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_of_dma_controller

Signed-off-by: Huang Shijie <sjhu...@iluvatar.ai>
---
 drivers/dma/imx-dma.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 75b6ff0415ee..d651fbea77ee 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -1186,7 +1186,7 @@ static int __init imxdma_probe(struct platform_device 
*pdev)
        imxdma->dma_device.dev->dma_parms = &imxdma->dma_parms;
        dma_set_max_seg_size(imxdma->dma_device.dev, 0xffffff);
 
-       ret = dma_async_device_register(&imxdma->dma_device);
+       ret = dmaenginem_async_device_register(&imxdma->dma_device);
        if (ret) {
                dev_err(&pdev->dev, "unable to register\n");
                goto disable_dma_ahb_clk;
@@ -1197,14 +1197,12 @@ static int __init imxdma_probe(struct platform_device 
*pdev)
                                imxdma_xlate, imxdma);
                if (ret) {
                        dev_err(&pdev->dev, "unable to register 
of_dma_controller\n");
-                       goto err_of_dma_controller;
+                       goto disable_dma_ahb_clk;
                }
        }
 
        return 0;
 
-err_of_dma_controller:
-       dma_async_device_unregister(&imxdma->dma_device);
 disable_dma_ahb_clk:
        clk_disable_unprepare(imxdma->dma_ahb);
 disable_dma_ipg_clk:
@@ -1237,8 +1235,6 @@ static int imxdma_remove(struct platform_device *pdev)
 
        imxdma_free_irq(pdev, imxdma);
 
-        dma_async_device_unregister(&imxdma->dma_device);
-
        if (pdev->dev.of_node)
                of_dma_controller_free(pdev->dev.of_node);
 
-- 
2.17.1