linux-kernel - [PATCH] platform: video-mux: fix ptr

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Message-ID: <20170525075139.GA721@intel11.lkp.intel.com>
Date:   Thu, 25 May 2017 15:51:39 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Steve Longerbeam <slongerbeam@...il.com>
Cc:     kbuild-all@...org, robh+dt@...nel.org, mark.rutland@....com,
        shawnguo@...nel.org, kernel@...gutronix.de, fabio.estevam@....com,
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        linux-media@...r.kernel.org
Subject: [PATCH] platform: video-mux: fix ptr_ret.cocci warnings

drivers/media/platform/video-mux.c:246:1-3: 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: Philipp Zabel <p.zabel@...gutronix.de>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

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

--- a/drivers/media/platform/video-mux.c
+++ b/drivers/media/platform/video-mux.c
@@ -243,10 +243,7 @@ static int video_mux_probe_mmio_mux(stru
 	field.lsb = ffs(mask) - 1;
 
 	vmux->field = devm_regmap_field_alloc(dev, regmap, field);
-	if (IS_ERR(vmux->field))
-		return PTR_ERR(vmux->field);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(vmux->field);
 }
 #endif