watchdog: shwdt: Remove the unnecessary check of resource after platform_get_resource()

devm_ioremap_resource check for a valid resource. Remove the unnecessary check.
Also group platform_get_resource and devm_ioremap_resource together for better
readability.

Signed-off-by: George Cherian <[e-mail]>
Reviewed-by: Guenter Roeck <[e-mail]>
Signed-off-by: Wim Van Sebroeck <[e-mail]>

drivers/watchdog/shwdt.c

···
 	if (pdev->id != -1)
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (unlikely(!res))
-		return -EINVAL;
-
 	wdt = devm_kzalloc(&pdev->dev, sizeof(struct sh_wdt), GFP_KERNEL);
 	if (unlikely(!wdt))
 		return -ENOMEM;
···
 		wdt->clk = NULL;
 	}
 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	wdt->base = devm_ioremap_resource(wdt->dev, res);
 	if (IS_ERR(wdt->base))
 		return PTR_ERR(wdt->base);