[PATCH 39/46] dmaengine: img-mdc-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 unregister

Signed-off-by: Huang Shijie <sjhu...@iluvatar.ai>
---
 drivers/dma/img-mdc-dma.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/img-mdc-dma.c b/drivers/dma/img-mdc-dma.c
index 25cec9c243e1..1e555ac62b1e 100644
--- a/drivers/dma/img-mdc-dma.c
+++ b/drivers/dma/img-mdc-dma.c
@@ -1001,21 +1001,19 @@ static int mdc_dma_probe(struct platform_device *pdev)
                        return ret;
        }
 
-       ret = dma_async_device_register(&mdma->dma_dev);
+       ret = dmaenginem_async_device_register(&mdma->dma_dev);
        if (ret)
                goto suspend;
 
        ret = of_dma_controller_register(pdev->dev.of_node, mdc_of_xlate, mdma);
        if (ret)
-               goto unregister;
+               goto suspend;
 
        dev_info(&pdev->dev, "MDC with %u channels and %u threads\n",
                 mdma->nr_channels, mdma->nr_threads);
 
        return 0;
 
-unregister:
-       dma_async_device_unregister(&mdma->dma_dev);
 suspend:
        if (!pm_runtime_enabled(&pdev->dev))
                img_mdc_runtime_suspend(&pdev->dev);
@@ -1029,7 +1027,6 @@ static int mdc_dma_remove(struct platform_device *pdev)
        struct mdc_chan *mchan, *next;
 
        of_dma_controller_free(pdev->dev.of_node);
-       dma_async_device_unregister(&mdma->dma_dev);
 
        list_for_each_entry_safe(mchan, next, &mdma->dma_dev.channels,
                                 vc.chan.device_node) {
-- 
2.17.1