From nobody Mon Nov 25 17:28:43 2024 Received: from unicom145.biz-email.net (unicom145.biz-email.net [210.51.26.145]) (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 0DE211B6CF6; Fri, 25 Oct 2024 09:11:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.51.26.145 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729847517; cv=none; b=Sk9P8pvP2ewZPj0a7oHXyzHyEo3LZ6X1Do94oeemHmHkPVfAlCigsVB0Pqw1j7jjulEdLDLxPtk4hW8v+i4E2I8YVMGoTeQ/Nv3ofdY4lkiMEhLmELwkrJLhrViXxlhW9wu12uIOXzCjhgvlYHWc1wQMBLlkOY2Umtme/FPvZtM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729847517; c=relaxed/simple; bh=04+J6j55e/vuZr5unczAqU49D9E/KvjzdZkFKQ/0gkk=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=EgPLp0uY+xIR5Y6piuLQoJD5asNRsGbZewDmkWQFgcqoDjH/B83WZY+r/Gx3IR3sdhR+yUR6bDEFmhYQ/ycbyJ5tF0EPe/xGlZCJIg8FNHUCXRDAFHGlgfE6U+8XMLFafcVnR+q9ZToOqu7htJErcebsXD7dHv6Miqg4bEnQr/c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=inspur.com; spf=pass smtp.mailfrom=inspur.com; arc=none smtp.client-ip=210.51.26.145 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=inspur.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=inspur.com Received: from unicom145.biz-email.net by unicom145.biz-email.net ((D)) with ASMTP (SSL) id WLL00042; Fri, 25 Oct 2024 17:11:42 +0800 Received: from jtjnmail201607.home.langchao.com (10.100.2.7) by jtjnmail201611.home.langchao.com (10.100.2.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 25 Oct 2024 17:11:41 +0800 Received: from localhost.localdomain (10.94.19.204) by jtjnmail201607.home.langchao.com (10.100.2.7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Fri, 25 Oct 2024 17:11:41 +0800 From: Charles Han To: , , , , , CC: , , , , , , Charles Han Subject: [PATCH] net: ethernet: ti: am65-cpsw: fix NULL deref check in am65_cpsw_nuss_probe Date: Fri, 25 Oct 2024 17:11:39 +0800 Message-ID: <20241025091139.230117-1-hanchunchao@inspur.com> X-Mailer: git-send-email 2.31.1 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-ClientProxiedBy: Jtjnmail201614.home.langchao.com (10.100.2.14) To jtjnmail201607.home.langchao.com (10.100.2.7) tUid: 20241025171142de145c96ebba91c5a170e9182a71026d X-Abuse-Reports-To: service@corp-email.com Abuse-Reports-To: service@corp-email.com X-Complaints-To: service@corp-email.com X-Report-Abuse-To: service@corp-email.com Content-Type: text/plain; charset="utf-8" In am65_cpsw_nuss_probe() devm_kzalloc() may return NULL but this returned value is not checked. Fixes: 1af3cb3702d0 ("net: ethernet: ti: am65-cpsw: Fix hardware switch mod= e on suspend/resume") Signed-off-by: Charles Han --- drivers/net/ethernet/ti/am65-cpsw-nuss.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/etherne= t/ti/am65-cpsw-nuss.c index 6201a09fa5f0..7af7542093e8 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -3528,6 +3528,9 @@ static int am65_cpsw_nuss_probe(struct platform_devic= e *pdev) common->ale_context =3D devm_kzalloc(dev, ale_entries * ALE_ENTRY_WORDS * sizeof(u32), GFP_KERNEL); + if (!common->ale_context) + return -ENOMEM; + ret =3D am65_cpsw_init_cpts(common); if (ret) goto err_of_clear; --=20 2.31.1