dmaengine: dma-jz4780: 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_dev

Signed-off-by: Huang Shijie <sjhuang@iluvatar.ai>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index 85820a2d69d48a104ca8063e796f8870e3daef2c..b2a244902bc52612ac258e2177c83fbc053c5ebf 100644 (file)
--- a/drivers/dma/dma-jz4780.c
+++ b/drivers/dma/dma-jz4780.c
@@ -847,7 +847,7 @@ static int jz4780_dma_probe(struct platform_device *pdev)
                jzchan->vchan.desc_free = jz4780_dma_desc_free;
        }
 
-       ret = dma_async_device_register(dd);
+       ret = dmaenginem_async_device_register(dd);
        if (ret) {
                dev_err(dev, "failed to register device\n");
                goto err_disable_clk;
@@ -858,15 +858,12 @@ static int jz4780_dma_probe(struct platform_device *pdev)
                                         jzdma);
        if (ret) {
                dev_err(dev, "failed to register OF DMA controller\n");
-               goto err_unregister_dev;
+               goto err_disable_clk;
        }
 
        dev_info(dev, "JZ4780 DMA controller initialised\n");
        return 0;
 
-err_unregister_dev:
-       dma_async_device_unregister(dd);
-
 err_disable_clk:
        clk_disable_unprepare(jzdma->clk);
 
@@ -887,7 +884,6 @@ static int jz4780_dma_remove(struct platform_device *pdev)
        for (i = 0; i < JZ_DMA_NR_CHANNELS; i++)
                tasklet_kill(&jzdma->chan[i].vchan.task);
 
-       dma_async_device_unregister(&jzdma->dma_device);
        return 0;
 }