From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 81B3CC282CE for ; Wed, 22 May 2019 19:45:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5397E20856 for ; Wed, 22 May 2019 19:45:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558554312; bh=/8Hl4knxiOx6qeODctPBRtxpqleFuvFFLcMbE7xdhVk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=WmteZtShZySDaTbvEdTuCYZkxaWHheQClronGwRHFjCDFSlA6Hg/UEzS8IhULkzZi tZMpiw9+tHfC1HUnkWpkwPasWNPOvnNfszPDobdHAluKmDaFhDQMjgGAjQKPprPDVc d+yDURz63BKVXlvufOrpkhxr/pb98hSm9li9Zhfg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731993AbfEVTpG (ORCPT ); Wed, 22 May 2019 15:45:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:50516 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731413AbfEVT2B (ORCPT ); Wed, 22 May 2019 15:28:01 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8D75520675; Wed, 22 May 2019 19:28:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558553281; bh=/8Hl4knxiOx6qeODctPBRtxpqleFuvFFLcMbE7xdhVk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nwmx7PXXoq1CveQq2hNeYSCWw2uWAIQLjRLQ+lXJWrAaTN1BYl7KWbDOlEB4lZ1co pOCefbHH2rrUxnqMwdn+KLfbavcAxMcKYE0j2+roL9qBETc3j7klvzUBLgPu4++kQS ene7mD0QNgAxcgOux6FveX9ZIQ8KafZHwaYigTC8= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kangjie Lu , Srinivas Kandagatla , Greg Kroah-Hartman , Sasha Levin , linux-arm-msm@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 055/244] slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register Date: Wed, 22 May 2019 15:23:21 -0400 Message-Id: <20190522192630.24917-55-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190522192630.24917-1-sashal@kernel.org> References: <20190522192630.24917-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Kangjie Lu [ Upstream commit 06d5d6b7f9948a89543e1160ef852d57892c750d ] In case platform_device_alloc fails, the fix returns an error code to avoid the NULL pointer dereference. Signed-off-by: Kangjie Lu Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/slimbus/qcom-ngd-ctrl.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c index 14a9d18306cbf..f63d1b8a09335 100644 --- a/drivers/slimbus/qcom-ngd-ctrl.c +++ b/drivers/slimbus/qcom-ngd-ctrl.c @@ -1331,6 +1331,10 @@ static int of_qcom_slim_ngd_register(struct device *parent, return -ENOMEM; ngd->pdev = platform_device_alloc(QCOM_SLIM_NGD_DRV_NAME, id); + if (!ngd->pdev) { + kfree(ngd); + return -ENOMEM; + } ngd->id = id; ngd->pdev->dev.parent = parent; ngd->pdev->driver_override = QCOM_SLIM_NGD_DRV_NAME; -- 2.20.1