diff options
| -rw-r--r-- | drivers/dma/mxs-dma.c | 39 |
1 files changed, 9 insertions, 30 deletions
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index 8f6d30d37c45..bb86f7ff55d9 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -674,7 +674,7 @@ static int __init mxs_dma_probe(struct platform_device *pdev) struct resource *iores; int ret, i; - mxs_dma = kzalloc(sizeof(*mxs_dma), GFP_KERNEL); + mxs_dma = devm_kzalloc(&pdev->dev, sizeof(*mxs_dma), GFP_KERNEL); if (!mxs_dma) return -ENOMEM; @@ -689,24 +689,13 @@ static int __init mxs_dma_probe(struct platform_device *pdev) mxs_dma->dev_id = dma_type->id; iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); + mxs_dma->base = devm_ioremap_resource(&pdev->dev, iores); + if (IS_ERR(mxs_dma->base)) + return PTR_ERR(mxs_dma->base); - if (!request_mem_region(iores->start, resource_size(iores), - pdev->name)) { - ret = -EBUSY; - goto err_request_region; - } - - mxs_dma->base = ioremap(iores->start, resource_size(iores)); - if (!mxs_dma->base) { - ret = -ENOMEM; - goto err_ioremap; - } - - mxs_dma->clk = clk_get(&pdev->dev, NULL); - if (IS_ERR(mxs_dma->clk)) { - ret = PTR_ERR(mxs_dma->clk); - goto err_clk; - } + mxs_dma->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(mxs_dma->clk)) + return PTR_ERR(mxs_dma->clk); dma_cap_set(DMA_SLAVE, mxs_dma->dma_device.cap_mask); dma_cap_set(DMA_CYCLIC, mxs_dma->dma_device.cap_mask); @@ -732,7 +721,7 @@ static int __init mxs_dma_probe(struct platform_device *pdev) ret = mxs_dma_init(mxs_dma); if (ret) - goto err_init; + return ret; mxs_dma->dma_device.dev = &pdev->dev; @@ -751,22 +740,12 @@ static int __init mxs_dma_probe(struct platform_device *pdev) ret = dma_async_device_register(&mxs_dma->dma_device); if (ret) { dev_err(mxs_dma->dma_device.dev, "unable to register\n"); - goto err_init; + return ret; } dev_info(mxs_dma->dma_device.dev, "initialized\n"); return 0; - -err_init: - clk_put(mxs_dma->clk); -err_clk: - iounmap(mxs_dma->base); -err_ioremap: - release_mem_region(iores->start, resource_size(iores)); -err_request_region: - kfree(mxs_dma); - return ret; } static struct platform_driver mxs_dma_driver = { |