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>

1 files changed, 4 insertions, 9 deletions

diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index cf149b19ff47..be45762f390a 100644
--- 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) {