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Mon, 13 May 2024 18:45:18 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3y24pv149k-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 13 May 2024 18:45:18 +0000 Received: from phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 44DIjISH027732; Mon, 13 May 2024 18:45:18 GMT Received: from ca-dev112.us.oracle.com (ca-dev112.us.oracle.com [10.129.136.47]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3y24pv148x-1; Mon, 13 May 2024 18:45:18 +0000 From: Harshit Mogalapalli To: Crt Mori , Jonathan Cameron , Lars-Peter Clausen , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: dan.carpenter@linaro.org, kernel-janitors@vger.kernel.org, error27@gmail.com, harshit.m.mogalapalli@oracle.com Subject: [PATCH] iio: temperature: mlx90635: Fix ERR_PTR dereference in mlx90635_probe() Date: Mon, 13 May 2024 11:45:14 -0700 Message-ID: <20240513184514.3200222-1-harshit.m.mogalapalli@oracle.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-13_13,2024-05-10_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 adultscore=0 mlxscore=0 spamscore=0 phishscore=0 suspectscore=0 mlxlogscore=999 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2405010000 definitions=main-2405130126 X-Proofpoint-GUID: bFDzWDMJpvIAmwyimUriWtgSZuMJkb_5 X-Proofpoint-ORIG-GUID: bFDzWDMJpvIAmwyimUriWtgSZuMJkb_5 When devm_regmap_init_i2c() fails, ragmap_ee could be error pointer, instead of checking for IS_ERR(ragmap_ee), regmap is checked which looks like a copy paste error. Fixes: a1d1ba5e1c28 ("iio: temperature: mlx90635 MLX90635 IR Temperature sensor") Signed-off-by: Harshit Mogalapalli --- This is found using smatch, only compile tested. --- drivers/iio/temperature/mlx90635.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/temperature/mlx90635.c b/drivers/iio/temperature/mlx90635.c index 1f5c962c1818..2b61489d5ee0 100644 --- a/drivers/iio/temperature/mlx90635.c +++ b/drivers/iio/temperature/mlx90635.c @@ -947,8 +947,8 @@ static int mlx90635_probe(struct i2c_client *client) "failed to allocate regmap\n"); regmap_ee = devm_regmap_init_i2c(client, &mlx90635_regmap_ee); - if (IS_ERR(regmap)) - return dev_err_probe(&client->dev, PTR_ERR(regmap), + if (IS_ERR(regmap_ee)) + return dev_err_probe(&client->dev, PTR_ERR(regmap_ee), "failed to allocate regmap\n"); mlx90635 = iio_priv(indio_dev); -- 2.39.3