usb: chipidea: core: switch over to devm_ioremap_resource

switch over to the newly added devm_ioremap_resource
which provides more consistent error messages.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 77963b6..42f2249 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -407,11 +407,9 @@
 		return -ENODEV;
 	}
 
-	base = devm_request_and_ioremap(dev, res);
-	if (!base) {
-		dev_err(dev, "can't request and ioremap resource\n");
-		return -ENOMEM;
-	}
+	base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	ci = devm_kzalloc(dev, sizeof(*ci), GFP_KERNEL);
 	if (!ci) {