linux-kernel - [PATCH] nvmem: meson-mx-efuse: fix ptr

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Message-ID: <20180304111333.GA24937@lkp-hsx02>
Date:   Sun, 4 Mar 2018 19:13:33 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Andrey Smirnov <andrew.smirnov@...il.com>
Cc:     kbuild-all@...org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Andrey Smirnov <andrew.smirnov@...il.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Carlo Caione <carlo@...one.org>,
        Kevin Hilman <khilman@...libre.com>,
        Matthias Brugger <matthias.bgg@...il.com>, cphealy@...il.com,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] nvmem: meson-mx-efuse: fix ptr_ret.cocci warnings

From: Fengguang Wu <fengguang.wu@...el.com>

drivers/nvmem/meson-mx-efuse.c:237:1-3: 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

Fixes: 37ef5352c0f7 ("nvmem: meson-mx-efuse: Convert to use devm_nvmem_register()")
CC: Andrey Smirnov <andrew.smirnov@...il.com>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

 meson-mx-efuse.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/nvmem/meson-mx-efuse.c
+++ b/drivers/nvmem/meson-mx-efuse.c
@@ -234,10 +234,7 @@ static int meson_mx_efuse_probe(struct p
 	}
 
 	efuse->nvmem = devm_nvmem_register(&pdev->dev, &efuse->config);
-	if (IS_ERR(efuse->nvmem))
-		return PTR_ERR(efuse->nvmem);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(efuse->nvmem);
 }
 
 static struct platform_driver meson_mx_efuse_driver = {