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crypto: sahara - Use dmam_alloc_coherent 

This patch moves the data allocated using dma_alloc_coherent to the
corresponding managed interface. To be compatible with the change,
various gotos are replaced with direct returns and unneeded labels
are dropped.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Vaishali Thakkar 2015-08-18 11:36:05 +05:30 committed by Herbert Xu
parent 6c3af95593
commit 66c9a04e33
1 changed files with 9 additions and 37 deletions
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46
drivers/crypto/sahara.c
View File

@ -1516,7 +1516,7 @@ static int sahara_probe(struct platform_device *pdev)
}
/* Allocate HW descriptors */
dev->hw_desc[0] = dma_alloc_coherent(&pdev->dev,
dev->hw_desc[0] = dmam_alloc_coherent(&pdev->dev,
SAHARA_MAX_HW_DESC * sizeof(struct sahara_hw_desc),
&dev->hw_phys_desc[0], GFP_KERNEL);
if (!dev->hw_desc[0]) {
@ -1528,34 +1528,31 @@ static int sahara_probe(struct platform_device *pdev)
sizeof(struct sahara_hw_desc);
/* Allocate space for iv and key */
dev->key_base = dma_alloc_coherent(&pdev->dev, 2 * AES_KEYSIZE_128,
dev->key_base = dmam_alloc_coherent(&pdev->dev, 2 * AES_KEYSIZE_128,
&dev->key_phys_base, GFP_KERNEL);
if (!dev->key_base) {
dev_err(&pdev->dev, "Could not allocate memory for key\n");
err = -ENOMEM;
goto err_key;
return -ENOMEM;
}
dev->iv_base = dev->key_base + AES_KEYSIZE_128;
dev->iv_phys_base = dev->key_phys_base + AES_KEYSIZE_128;
/* Allocate space for context: largest digest + message length field */
dev->context_base = dma_alloc_coherent(&pdev->dev,
dev->context_base = dmam_alloc_coherent(&pdev->dev,
SHA256_DIGEST_SIZE + 4,
&dev->context_phys_base, GFP_KERNEL);
if (!dev->context_base) {
dev_err(&pdev->dev, "Could not allocate memory for MDHA context\n");
err = -ENOMEM;
goto err_key;
return -ENOMEM;
}
/* Allocate space for HW links */
dev->hw_link[0] = dma_alloc_coherent(&pdev->dev,
dev->hw_link[0] = dmam_alloc_coherent(&pdev->dev,
SAHARA_MAX_HW_LINK * sizeof(struct sahara_hw_link),
&dev->hw_phys_link[0], GFP_KERNEL);
if (!dev->hw_link[0]) {
dev_err(&pdev->dev, "Could not allocate hw links\n");
err = -ENOMEM;
goto err_link;
return -ENOMEM;
}
for (i = 1; i < SAHARA_MAX_HW_LINK; i++) {
dev->hw_phys_link[i] = dev->hw_phys_link[i - 1] +
@ -1572,15 +1569,14 @@ static int sahara_probe(struct platform_device *pdev)
dev->kthread = kthread_run(sahara_queue_manage, dev, "sahara_crypto");
if (IS_ERR(dev->kthread)) {
err = PTR_ERR(dev->kthread);
goto err_link;
return PTR_ERR(dev->kthread);
}
init_completion(&dev->dma_completion);
err = clk_prepare_enable(dev->clk_ipg);
if (err)
goto err_link;
return err;
err = clk_prepare_enable(dev->clk_ahb);
if (err)
goto clk_ipg_disable;
@ -1620,25 +1616,11 @@ static int sahara_probe(struct platform_device *pdev)
return 0;
err_algs:
dma_free_coherent(&pdev->dev,
SAHARA_MAX_HW_LINK * sizeof(struct sahara_hw_link),
dev->hw_link[0], dev->hw_phys_link[0]);
kthread_stop(dev->kthread);
dev_ptr = NULL;
clk_disable_unprepare(dev->clk_ahb);
clk_ipg_disable:
clk_disable_unprepare(dev->clk_ipg);
err_link:
dma_free_coherent(&pdev->dev,
2 * AES_KEYSIZE_128,
dev->key_base, dev->key_phys_base);
dma_free_coherent(&pdev->dev,
SHA256_DIGEST_SIZE,
dev->context_base, dev->context_phys_base);
err_key:
dma_free_coherent(&pdev->dev,
SAHARA_MAX_HW_DESC * sizeof(struct sahara_hw_desc),
dev->hw_desc[0], dev->hw_phys_desc[0]);
return err;
}
@ -1647,16 +1629,6 @@ static int sahara_remove(struct platform_device *pdev)
{
struct sahara_dev *dev = platform_get_drvdata(pdev);
dma_free_coherent(&pdev->dev,
SAHARA_MAX_HW_LINK * sizeof(struct sahara_hw_link),
dev->hw_link[0], dev->hw_phys_link[0]);
dma_free_coherent(&pdev->dev,
2 * AES_KEYSIZE_128,
dev->key_base, dev->key_phys_base);
dma_free_coherent(&pdev->dev,
SAHARA_MAX_HW_DESC * sizeof(struct sahara_hw_desc),
dev->hw_desc[0], dev->hw_phys_desc[0]);
kthread_stop(dev->kthread);
sahara_unregister_algs(dev);