usb: gadget: fix ptr_ret.cocci warnings

drivers/usb/gadget/udc/r8a66597-udc.c:1849:1-3: WARNING: PTR_ERR_OR_ZERO can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index b63a527baf13..be31b57a8ba1 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1845,10 +1845,7 @@ static int r8a66597_sudmac_ioremap(struct r8a66597 *r8a66597,
 
         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sudmac");
         r8a66597->sudmac_reg = devm_ioremap_resource(&pdev->dev, res);
-        if (IS_ERR(r8a66597->sudmac_reg))
-                return PTR_ERR(r8a66597->sudmac_reg);
-
-        return 0;
+        return PTR_ERR_OR_ZERO(r8a66597->sudmac_reg);
 }
 
 static int r8a66597_probe(struct platform_device *pdev)