[PATCH 43/46] dmaengine: dma-jz4780: 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_unregister_dev

Signed-off-by: Huang Shijie <sjhu...@iluvatar.ai>
---
 drivers/dma/dma-jz4780.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
index 85820a2d69d4..b2a244902bc5 100644
--- 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;
 }
 
-- 
2.17.1