spi: wpcm-fiu: Fix uninitialized res

Merge series from Jinjie Ruan <ruanjinjie@huawei.com>:

Fix uninitialized res in probe function.

drivers/spi/spi-wpcm-fiu.c

@@ -449,21 +449,20 @@ static int wpcm_fiu_probe(struct platform_device *pdev)
 	fiu->dev = dev;
 
 	fiu->regs = devm_platform_ioremap_resource_byname(pdev, "control");
-	if (IS_ERR(fiu->regs)) {
-		dev_err(dev, "Failed to map registers\n");
-		return PTR_ERR(fiu->regs);
-	}
+	if (IS_ERR(fiu->regs))
+		return dev_err_probe(dev, PTR_ERR(fiu->regs),
+				     "Failed to map registers\n");
 
 	fiu->clk = devm_clk_get_enabled(dev, NULL);
 	if (IS_ERR(fiu->clk))
 		return PTR_ERR(fiu->clk);
 
-	fiu->memory = devm_platform_ioremap_resource_byname(pdev, "memory");
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "memory");
+	fiu->memory = devm_ioremap_resource(dev, res);
 	fiu->memory_size = min_t(size_t, resource_size(res), MAX_MEMORY_SIZE_TOTAL);
-	if (IS_ERR(fiu->memory)) {
-		dev_err(dev, "Failed to map flash memory window\n");
-		return PTR_ERR(fiu->memory);
-	}
+	if (IS_ERR(fiu->memory))
+		return dev_err_probe(dev, PTR_ERR(fiu->memory),
+			       "Failed to map flash memory window\n");
 
 	fiu->shm_regmap = syscon_regmap_lookup_by_phandle_optional(dev->of_node, "nuvoton,shm");