crypto: picoxcell - 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, 5 insertions, 11 deletions

diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c
index a6175ba6d238..5da5b98b8f29 100644
--- a/drivers/crypto/picoxcell_crypto.c
+++ b/drivers/crypto/picoxcell_crypto.c
@@ -1720,22 +1720,16 @@ static int spacc_probe(struct platform_device *pdev)
         engine->name = dev_name(&pdev->dev);
 
         mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        engine->regs = devm_ioremap_resource(&pdev->dev, mem);
+        if (IS_ERR(engine->regs))
+                return PTR_ERR(engine->regs);
+
         irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-        if (!mem || !irq) {
+        if (!irq) {
                 dev_err(&pdev->dev, "no memory/irq resource for engine\n");
                 return -ENXIO;
         }
 
-        if (!devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem),
-                                     engine->name))
-                return -ENOMEM;
-
-        engine->regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
-        if (!engine->regs) {
-                dev_err(&pdev->dev, "memory map failed\n");
-                return -ENOMEM;
-        }
-
         if (devm_request_irq(&pdev->dev, irq->start, spacc_spacc_irq, 0,
                              engine->name, engine)) {
                 dev_err(engine->dev, "failed to request IRQ\n");