crypto: atmel - use devm_xxx() managed function

Using the devm_xxx() managed function to stripdown the error and remove
code.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 9 insertions, 18 deletions

diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index 5e6cf0891b4d..660d8c06540b 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -1349,11 +1349,9 @@ static int atmel_sha_probe(struct platform_device *pdev)
         struct crypto_platform_data     *pdata;
         struct device *dev = &pdev->dev;
         struct resource *sha_res;
-        unsigned long sha_phys_size;
         int err;
 
-        sha_dd = devm_kzalloc(&pdev->dev, sizeof(struct atmel_sha_dev),
-                                GFP_KERNEL);
+        sha_dd = devm_kzalloc(&pdev->dev, sizeof(*sha_dd), GFP_KERNEL);
         if (sha_dd == NULL) {
                 dev_err(dev, "unable to alloc data struct.\n");
                 err = -ENOMEM;
@@ -1382,7 +1380,6 @@ static int atmel_sha_probe(struct platform_device *pdev)
                 goto res_err;
         }
         sha_dd->phys_base = sha_res->start;
-        sha_phys_size = resource_size(sha_res);
 
         /* Get the IRQ */
         sha_dd->irq = platform_get_irq(pdev,  0);
@@ -1392,26 +1389,26 @@ static int atmel_sha_probe(struct platform_device *pdev)
                 goto res_err;
         }
 
-        err = request_irq(sha_dd->irq, atmel_sha_irq, IRQF_SHARED, "atmel-sha",
-                                                sha_dd);
+        err = devm_request_irq(&pdev->dev, sha_dd->irq, atmel_sha_irq,
+                               IRQF_SHARED, "atmel-sha", sha_dd);
         if (err) {
                 dev_err(dev, "unable to request sha irq.\n");
                 goto res_err;
         }
 
         /* Initializing the clock */
-        sha_dd->iclk = clk_get(&pdev->dev, "sha_clk");
+        sha_dd->iclk = devm_clk_get(&pdev->dev, "sha_clk");
         if (IS_ERR(sha_dd->iclk)) {
                 dev_err(dev, "clock initialization failed.\n");
                 err = PTR_ERR(sha_dd->iclk);
-                goto clk_err;
+                goto res_err;
         }
 
-        sha_dd->io_base = ioremap(sha_dd->phys_base, sha_phys_size);
+        sha_dd->io_base = devm_ioremap_resource(&pdev->dev, sha_res);
         if (!sha_dd->io_base) {
                 dev_err(dev, "can't ioremap\n");
                 err = -ENOMEM;
-                goto sha_io_err;
+                goto res_err;
         }
 
         atmel_sha_hw_version_init(sha_dd);
@@ -1425,12 +1422,12 @@ static int atmel_sha_probe(struct platform_device *pdev)
                         if (IS_ERR(pdata)) {
                                 dev_err(&pdev->dev, "platform data not available\n");
                                 err = PTR_ERR(pdata);
-                                goto err_pdata;
+                                goto res_err;
                         }
                 }
                 if (!pdata->dma_slave) {
                         err = -ENXIO;
-                        goto err_pdata;
+                        goto res_err;
                 }
                 err = atmel_sha_dma_init(sha_dd, pdata);
                 if (err)
@@ -1461,12 +1458,6 @@ err_algs:
         if (sha_dd->caps.has_dma)
                 atmel_sha_dma_cleanup(sha_dd);
 err_sha_dma:
-err_pdata:
-        iounmap(sha_dd->io_base);
-sha_io_err:
-        clk_put(sha_dd->iclk);
-clk_err:
-        free_irq(sha_dd->irq, sha_dd);
 res_err:
         tasklet_kill(&sha_dd->done_task);
 sha_dd_err: