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=-8.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham 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 6B2D7C76191 for ; Sun, 21 Jul 2019 18:15:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3D338206BF for ; Sun, 21 Jul 2019 18:15:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="P2EYg2QA" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727207AbfGUSPn (ORCPT ); Sun, 21 Jul 2019 14:15:43 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:33179 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726484AbfGUSPm (ORCPT ); Sun, 21 Jul 2019 14:15:42 -0400 Received: by mail-pl1-f193.google.com with SMTP id c14so17976940plo.0 for ; Sun, 21 Jul 2019 11:15:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:subject:message-id:mime-version:content-disposition :user-agent; bh=RWwLZt/rt3rzH+QJKbsOFH6f0FNBf1yA2AONMe227Ak=; b=P2EYg2QAnNUbU3edGEbUEtYVrJRG76A7b0Brz9dpH6TpPooOr0Jo1P0e8Gdft5T3dn PP/qZG+gyty4qKDJl0c1Vy8cbBApIuwPOUTFiBgPD8QyvXZt/IagX/d9+BkqvDZTl2il C+MUUBa0fm6EG3pqtQPCiWsu79ojKs/Jl1IOXAFaE2dwGRVxwosrUVk5A9AL9Owwcvdk fJe6vKUKzFReByV1D6poE8WPcJiyhlmsAWUdmhocaYsP3coFXxw4WkF8W83qcgY8jAMO qcktb+53nUerGJE2SkSn4Lc9+2bmJkG0FO/VzoOssUjCuP++aUiHOku1/669hBw6J3Ha hTRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition:user-agent; bh=RWwLZt/rt3rzH+QJKbsOFH6f0FNBf1yA2AONMe227Ak=; b=bHGnLr8+iFDf7D5PRCg8YdX5lLcmjMGUZQK4kaOQPU8ftBORIBkq3c6UI2d4mYZI6v qCDH0g75dO3oXNeOG13WjGVMRf4EIgTtfbe2yoE8akry7D0t503GqO5ODFAy9+UUNbxx 4Zd8Gn4wYcWNE/cP3cYUec6KBIznuRDGxKCVfr8n5IQPiNxsA3t3CQEgCSTLzKZXlX6r dPJ11XBarOV7pX94WIaBprGYzdWsNvYiH+6REs8tefvcFK7JVCdOWbmp6Xne/czyY7wd Y0K0y0iOfL4YCwC6xXWyl5/xX3T4h2BFSWAOZCZ3ONZgG/ViFaiyFiQnr7kP7GYx0q3L GRaQ== X-Gm-Message-State: APjAAAVKdbe3GFr47H22zJ+/Gh5HcTeNJpYfGZT64vU20dPI3SiB6UxV g1V2RVQYsYtMPgcIi0Q3P7Q= X-Google-Smtp-Source: APXvYqxsFR6/nJOopb1myYnRstaWcWMyoLeAJ5eu/0DJ3inVuljlHLs/0ckz4mLYB2FUulM73NnvJw== X-Received: by 2002:a17:902:124:: with SMTP id 33mr72747169plb.145.1563732942128; Sun, 21 Jul 2019 11:15:42 -0700 (PDT) Received: from hari-Inspiron-1545 ([183.83.86.126]) by smtp.gmail.com with ESMTPSA id 35sm38914619pgw.91.2019.07.21.11.15.39 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 21 Jul 2019 11:15:41 -0700 (PDT) Date: Sun, 21 Jul 2019 23:45:36 +0530 From: Hariprasad Kelam To: Thomas Gleixner , Jason Cooper , Marc Zyngier , Marc Gonzalez , Mans Rullgard , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH] irqchip/tango: Add NULL check after memory operation Message-ID: <20190721181536.GA13450@hari-Inspiron-1545> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add NULL check after kzalloc operation. Fix below issue reported by coccicheck ./drivers/irqchip/irq-tango.c:189:1-5: alloc with no test, possible model on line 193 Signed-off-by: Hariprasad Kelam --- drivers/irqchip/irq-tango.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/irqchip/irq-tango.c b/drivers/irqchip/irq-tango.c index 34290f0..761b9fa 100644 --- a/drivers/irqchip/irq-tango.c +++ b/drivers/irqchip/irq-tango.c @@ -187,6 +187,8 @@ static int __init tangox_irq_init(void __iomem *base, struct resource *baseres, panic("%pOFn: failed to get address", node); chip = kzalloc(sizeof(*chip), GFP_KERNEL); + if (!chip) + return -ENOMEM; chip->ctl = res.start - baseres->start; chip->base = base; -- 2.7.4