crypto: s5p-sss - Use devm_ioremap_resource()

Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index cf149b1..be45762 100644 (file)
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -568,17 +568,14 @@ static int s5p_aes_probe(struct platform_device *pdev)
        if (s5p_dev)
                return -EEXIST;
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!res)
-               return -ENODEV;
-
        pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
        if (!pdata)
                return -ENOMEM;
 
-       if (!devm_request_mem_region(dev, res->start,
-                                    resource_size(res), pdev->name))
-               return -EBUSY;
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(pdata->ioaddr))
+               return PTR_ERR(pdata->ioaddr);
 
        pdata->clk = devm_clk_get(dev, "secss");
        if (IS_ERR(pdata->clk)) {
@@ -589,8 +586,6 @@ static int s5p_aes_probe(struct platform_device *pdev)
        clk_enable(pdata->clk);
 
        spin_lock_init(&pdata->lock);
-       pdata->ioaddr = devm_ioremap(dev, res->start,
-                                    resource_size(res));
 
        pdata->irq_hash = platform_get_irq_byname(pdev, "hash");
        if (pdata->irq_hash < 0) {