[PATCH 33/46] dmaengine: pch_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.

Signed-off-by: Huang Shijie <sjhu...@iluvatar.ai>
---
 drivers/dma/pch_dma.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index afd8f27bda96..505463d077c0 100644
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -922,7 +922,7 @@ static int pch_dma_probe(struct pci_dev *pdev,
        pd->dma.device_prep_slave_sg = pd_prep_slave_sg;
        pd->dma.device_terminate_all = pd_device_terminate_all;
 
-       err = dma_async_device_register(&pd->dma);
+       err = dmaenginem_async_device_register(&pd->dma);
        if (err) {
                dev_err(&pdev->dev, "Failed to register DMA device\n");
                goto err_free_pool;
@@ -952,8 +952,6 @@ static void pch_dma_remove(struct pci_dev *pdev)
        struct dma_chan *chan, *_c;
 
        if (pd) {
-               dma_async_device_unregister(&pd->dma);
-
                free_irq(pdev->irq, pd);
 
                list_for_each_entry_safe(chan, _c, &pd->dma.channels,
-- 
2.17.1