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Date: Fri, 17 Mar 2017 22:48:09 +0800
From: kbuild test robot <lkp@intel.com>
To: Olimpiu Dejeu <olimpiu@arcticsand.com>
Cc: kbuild-all@01.org, robh@kernel.org, lee.jones@linaro.org,
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Subject: [PATCH] fix ptr_ret.cocci warnings
Message-ID: <20170317144809.GA103304@lkp-hsx03.lkp.intel.com>
References: <201703172233.osJjGFrP%fengguang.wu@intel.com>
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drivers/video/backlight/arcxcnn_bl.c:183:1-3: 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

CC: Olimpiu Dejeu <olimpiu@arcticsand.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---

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

--- a/drivers/video/backlight/arcxcnn_bl.c
+++ b/drivers/video/backlight/arcxcnn_bl.c
@@ -180,10 +180,7 @@ static int arcxcnn_backlight_register(st
 
 	lp->bl = devm_backlight_device_register(lp->dev, name, lp->dev, lp,
 				       &arcxcnn_bl_ops, props);
-	if (IS_ERR(lp->bl))
-		return PTR_ERR(lp->bl);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(lp->bl);
 }
 
 static void arcxcnn_parse_dt(struct arcxcnn *lp)