[PATCH 15/46] dmaengine: s3c24xx-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_slave_reg

Signed-off-by: Huang Shijie <sjhu...@iluvatar.ai>
---
 drivers/dma/s3c24xx-dma.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c
index 64744eb88720..1d820c0cd14b 100644
--- a/drivers/dma/s3c24xx-dma.c
+++ b/drivers/dma/s3c24xx-dma.c
@@ -1330,7 +1330,7 @@ static int s3c24xx_dma_probe(struct platform_device *pdev)
                goto err_slave;
        }
 
-       ret = dma_async_device_register(&s3cdma->memcpy);
+       ret = dmaenginem_async_device_register(&s3cdma->memcpy);
        if (ret) {
                dev_warn(&pdev->dev,
                        "%s failed to register memcpy as an async device - 
%d\n",
@@ -1338,12 +1338,12 @@ static int s3c24xx_dma_probe(struct platform_device 
*pdev)
                goto err_memcpy_reg;
        }
 
-       ret = dma_async_device_register(&s3cdma->slave);
+       ret = dmaenginem_async_device_register(&s3cdma->slave);
        if (ret) {
                dev_warn(&pdev->dev,
                        "%s failed to register slave as an async device - %d\n",
                        __func__, ret);
-               goto err_slave_reg;
+               goto err_memcpy_reg;
        }
 
        platform_set_drvdata(pdev, s3cdma);
@@ -1352,8 +1352,6 @@ static int s3c24xx_dma_probe(struct platform_device *pdev)
 
        return 0;
 
-err_slave_reg:
-       dma_async_device_unregister(&s3cdma->memcpy);
 err_memcpy_reg:
        s3c24xx_dma_free_virtual_channels(&s3cdma->slave);
 err_slave:
@@ -1388,9 +1386,6 @@ static int s3c24xx_dma_remove(struct platform_device 
*pdev)
        struct soc_data *sdata = s3c24xx_dma_get_soc_data(pdev);
        int i;
 
-       dma_async_device_unregister(&s3cdma->slave);
-       dma_async_device_unregister(&s3cdma->memcpy);
-
        s3c24xx_dma_free_irq(pdev, s3cdma);
 
        s3c24xx_dma_free_virtual_channels(&s3cdma->slave);
-- 
2.17.1