crypto: sa2ul - Use devm_platform_ioremap_resource()

Simplify the platform_get_resource() and devm_ioremap_resource()
calls with devm_platform_ioremap_resource(). Also add error checking
and move up this block to simplify the cleanup in sa_ul_probe().
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Tero Kristo <kristo@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/sa2ul.c

@@ -2390,7 +2390,6 @@ static int sa_ul_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *node = dev->of_node;
-	struct resource *res;
 	static void __iomem *saul_base;
 	struct sa_crypto_data *dev_data;
 	int ret;
@@ -2403,9 +2402,14 @@ static int sa_ul_probe(struct platform_device *pdev)
 	if (!dev_data->match_data)
 		return -ENODEV;
 
+	saul_base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(saul_base))
+		return PTR_ERR(saul_base);
+
 	sa_k3_dev = dev;
 	dev_data->dev = dev;
 	dev_data->pdev = pdev;
+	dev_data->base = saul_base;
 	platform_set_drvdata(pdev, dev_data);
 	dev_set_drvdata(sa_k3_dev, dev_data);
 
@@ -2424,10 +2428,6 @@ static int sa_ul_probe(struct platform_device *pdev)
 		goto destroy_dma_pool;
 
 	spin_lock_init(&dev_data->scid_lock);
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	saul_base = devm_ioremap_resource(dev, res);
-
-	dev_data->base = saul_base;
 
 	if (!dev_data->match_data->skip_engine_control) {
 		u32 val = SA_EEC_ENCSS_EN | SA_EEC_AUTHSS_EN | SA_EEC_CTXCACH_EN |