From nobody Mon Feb 9 12:12:07 2026 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B96A9604C8; Tue, 2 Apr 2024 10:41:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.177.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712054471; cv=none; b=gFDJJa6KPSXs/7r+rxq2lrEQq5yLhF8tlnBkP5LylzlmnMnKV63R+LNo3KKnnlcxKFeqk3UtbNdaAL3MupJX9OjJLAPcH6tBabjZwhd59N23A1uAkcSsOIk117VwoSJifkrCj91mB4o05Pr/VaGwmH/+kLNBm/MadSc6Jlf3YUQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712054471; c=relaxed/simple; bh=cxM78pKms/4lwSlDz7hbP/DmZncN6R7RsfyspvuOEmU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=XjL+KgUm4it90yAw7jlq5q4QGSH1zRUhPaSC4B2CrQuElNfcZSKM3Vk/d83wTxNryjfagWRMHu7xCiVLawW77RSn3qFhAB8cW6aLwZftWyW9a12d/leNthlG/S8oWUXhZQhZgb8qDxD1MlQ/z+W58IQ1+VVIzEkahQaiYXsn2I0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=XO4n/LgT; arc=none smtp.client-ip=205.220.177.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="XO4n/LgT" Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 4327hnp8021239; Tue, 2 Apr 2024 10:40:54 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=corp-2023-11-20; bh=KneB49LPzOM38AMQBvSH5d/jF8EAr0Yt5QSa5AJ9wZQ=; b=XO4n/LgTzRsCDZWM27SVeuGn5x/8MtGyUc23GGjU6fzDwRF4qnTDQnqdK80MYNggTJ7p 4DcL66b6b8Yf1Lw+N5e9vmqlSaNEafsF/vkwwg7fElDRUS/NmQXoNvW2ka4/ue7J6uvj V3YS0TyymAtQ/R63dGRwatrF2f1NnFc0sTEDQeHugQr1yWM0geziheU8Ss6KG0wnvUH4 eF3kTwAqBmN7/ocAyk9ry9l/ebtiyEKBcxMA26vnTuXMEPLSCf7lU1nFgD/vk6xQFyLA xqLrchDwZwz56gDkGNHFWundyC7W2i95tiSR3zZ78qgDKZYLPWZe06GhOtT8LqV0TL5U zQ== Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.appoci.oracle.com [138.1.37.129]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3x6abuc9uq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 02 Apr 2024 10:40:54 +0000 Received: from pps.filterd (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.19/8.17.1.19) with ESMTP id 432AREFs040407; Tue, 2 Apr 2024 10:40:53 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 3x6966sr8u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 02 Apr 2024 10:40:53 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 432Aeqei023453; Tue, 2 Apr 2024 10:40:52 GMT Received: from ca-dev112.us.oracle.com (ca-dev112.us.oracle.com [10.129.136.47]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3x6966sr8h-1; Tue, 02 Apr 2024 10:40:52 +0000 From: Harshit Mogalapalli To: Boris Brezillon , Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Grant Likely , dri-devel@lists.freedesktop.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] drm/panthor: Fix NULL vs IS_ERR() bug in panthor_probe() Date: Tue, 2 Apr 2024 03:40:40 -0700 Message-ID: <20240402104041.1689951-1-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: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-04-02_04,2024-04-01_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 malwarescore=0 mlxlogscore=999 adultscore=0 bulkscore=0 phishscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2403210000 definitions=main-2404020077 X-Proofpoint-ORIG-GUID: bRNmNBiqVfRSvrPgK0gLxKD1AqCyVTOC X-Proofpoint-GUID: bRNmNBiqVfRSvrPgK0gLxKD1AqCyVTOC Content-Type: text/plain; charset="utf-8" The devm_drm_dev_alloc() function returns error pointers. Update the error handling to check for error pointers instead of NULL. Fixes: 4bdca1150792 ("drm/panthor: Add the driver frontend block") Signed-off-by: Harshit Mogalapalli Reviewed-by: Boris Brezillon --- This is spotted by smatch and the patch is only compile tested --- drivers/gpu/drm/panthor/panthor_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/pantho= r/panthor_drv.c index 11b3ccd58f85..1b588b37db98 100644 --- a/drivers/gpu/drm/panthor/panthor_drv.c +++ b/drivers/gpu/drm/panthor/panthor_drv.c @@ -1385,7 +1385,7 @@ static int panthor_probe(struct platform_device *pdev) =20 ptdev =3D devm_drm_dev_alloc(&pdev->dev, &panthor_drm_driver, struct panthor_device, base); - if (!ptdev) + if (IS_ERR(ptdev)) return -ENOMEM; =20 platform_set_drvdata(pdev, ptdev); --=20 2.39.3