# \[PATCH v2 2/9\] dmaengine: stm32-mdma: use dmaenginem\_async\_device\_register to simplify the code

- From: Huang Shijie \<hidden\>
- Date: 2018-08-06 08:52:24 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2018/08/8771925
- Thread: https://ratatoskr.run/linux-arm-kernel/2018/08/8771933/t.md

```text
Use dmaenginem_async_device_register to simplify the code:
	remove dma_async_device_unregister.

Acked-by: Pierre-Yves MORDRET <redacted>
Signed-off-by: Huang Shijie <redacted>
---
 drivers/dma/stm32-mdma.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index 06dd1725375e..390e4cae0e1a 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -1656,7 +1656,7 @@ static int stm32_mdma_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	ret = dma_async_device_register(dd);
+	ret = dmaenginem_async_device_register(dd);
 	if (ret)
 		return ret;
 
@@ -1674,8 +1674,6 @@ static int stm32_mdma_probe(struct platform_device *pdev)
 	return 0;
 
 err_unregister:
-	dma_async_device_unregister(dd);
-
 	return ret;
 }
 
-- 
2.17.1
```