linux-kernel - [PATCH] usb: gadget: fix ptr

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Date:	Wed, 29 Oct 2014 22:18:55 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Felipe Balbi <balbi@...com>
Cc:	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	Julia Lawall <julia.lawall@...6.fr>, linux-usb@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] 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@...el.com>
---

 r8a66597-udc.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1846,10 +1846,7 @@ static int r8a66597_sudmac_ioremap(struc
 
 	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)
--
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