linux-kernel - [PATCH -next v2] mfd: pm8008: Fix return value check in pm8008

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Date:   Fri, 4 Jun 2021 09:38:24 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>
CC:     <lee.jones@...aro.org>, <agross@...nel.org>,
        <gurus@...eaurora.org>, <dmitry.baryshkov@...aro.org>
Subject: [PATCH -next v2] mfd: pm8008: Fix return value check in pm8008_probe()

In case of error, the function devm_regmap_init_i2c() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Fixes: 6b149f3310a4 ("mfd: pm8008: Add driver for QCOM PM8008 PMIC")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
v2:
  make the change correspond to the changelog
---
 drivers/mfd/qcom-pm8008.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/qcom-pm8008.c b/drivers/mfd/qcom-pm8008.c
index c472d7f8103c..476171455d32 100644
--- a/drivers/mfd/qcom-pm8008.c
+++ b/drivers/mfd/qcom-pm8008.c
@@ -228,7 +228,7 @@ static int pm8008_probe(struct i2c_client *client)
 
 	chip->dev = &client->dev;
 	chip->regmap = devm_regmap_init_i2c(client, &qcom_mfd_regmap_cfg);
-	if (!chip->regmap)
+	if (IS_ERR(chip->regmap))
 		return -ENODEV;
 
 	i2c_set_clientdata(client, chip);
-- 
2.25.1