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Subject[PATCH 43/46] dmaengine: dma-jz4780: use dmaenginem_async_device_register to simplify the code
Date
Use dmaenginem_async_device_register to simplify the code:
remove dma_async_device_unregister.
remove label err_unregister_dev

Signed-off-by: Huang Shijie <sjhuang@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
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