linux-kernel - [PATCH] input: tm2-touchkey: fix odd_ptr

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Message-ID: <alpine.DEB.2.20.1701031437312.3021@hadrien>
Date:   Tue, 3 Jan 2017 14:39:56 +0100 (CET)
From:   Julia Lawall <julia.lawall@...6.fr>
To:     Jaechul Lee <jcsing.lee@...sung.com>
cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Javier Martinez Canillas <javier@....samsung.com>,
        kbuild-all@...org, Jaechul Lee <jcsing.lee@...sung.com>,
        Andi Shyti <andi.shyti@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>, beomho.seo@...sung.com,
        galaxyra@...il.com, linux-arm-kernel@...ts.infradead.org,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Subject: [PATCH] input: tm2-touchkey: fix odd_ptr_err.cocci warnings

PTR_ERR should access the value just tested by IS_ERR

Generated by: scripts/coccinelle/tests/odd_ptr_err.cocci

CC: Jaechul Lee <jcsing.lee@...sung.com>
Signed-off-by: Julia Lawall <julia.lawall@...6.fr>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

I have only looked at the extract of code that is shown here.  It could be
the test that is wrong.

The code comes from:

url:
https://github.com/0day-ci/linux/commits/Jaechul-Lee/Add-touch-key-driver-su
pport-for-TM2/20170103-183357
:::::: branch date: 2 hours ago
:::::: commit date: 2 hours ago

 tm2-touchkey.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/input/keyboard/tm2-touchkey.c
+++ b/drivers/input/keyboard/tm2-touchkey.c
@@ -196,7 +196,7 @@ static int tm2_touchkey_probe(struct i2c
 				devm_regulator_get(&client->dev, "vdd");
 	if (IS_ERR(samsung_touchkey->regulator_vdd)) {
 		dev_err(&client->dev, "Failed to get vdd regulator\n");
-		return PTR_ERR(samsung_touchkey->regulator_vcc);
+		return PTR_ERR(samsung_touchkey->regulator_vdd);
 	}

 	/* power */