From patchwork Wed Apr 22 09:57:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 227316 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 68D96C55186 for ; Wed, 22 Apr 2020 10:07:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 381B12076C for ; Wed, 22 Apr 2020 10:07:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587550070; bh=lXo/mUOLvXgMdxR13M1GMOY84RU5XYqhgyq8Pb0pkEw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cEqsbQDAwy+U60M+KU95LROdi3aeQrBm3TrRC/kMlOQtjwHcUftRFMiCpxgo2ZDVq 0hIuhowSDHcuYHA2+fY/Mad+mYNpBStXdZJGRHNKpkF3ybHP4OC3Gx+NJ7SGPt/Xj2 xsDxAn1A+NxaH2XHwOGkbpMdkpxWPr/MNwKT6NsA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728018AbgDVKHt (ORCPT ); Wed, 22 Apr 2020 06:07:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:60658 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726709AbgDVKHr (ORCPT ); Wed, 22 Apr 2020 06:07:47 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C7C4A2076C; Wed, 22 Apr 2020 10:07:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587550067; bh=lXo/mUOLvXgMdxR13M1GMOY84RU5XYqhgyq8Pb0pkEw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oJfTwhfkwDGK5P2nTbqLWx3nsRkBVs2HyGNhUWVkfAWBdb+rms0+dUsdjG99VT0Yr LIUnVpR31w47V5sLhK3N6HHv7Fi1K4pFMICSBFdwL1p6rHBbMikr2/6QKujbScRT3k 9xitAmB+/bPLeQ8CHqVyDjdlOsxRhHKLGPqGWFps= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , Miquel Raynal Subject: [PATCH 4.9 121/125] mtd: lpddr: Fix a double free in probe() Date: Wed, 22 Apr 2020 11:57:18 +0200 Message-Id: <20200422095052.022334749@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200422095032.909124119@linuxfoundation.org> References: <20200422095032.909124119@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dan Carpenter commit 4da0ea71ea934af18db4c63396ba2af1a679ef02 upstream. This function is only called from lpddr_probe(). We free "lpddr" both here and in the caller, so it's a double free. The best place to free "lpddr" is in lpddr_probe() so let's delete this one. Fixes: 8dc004395d5e ("[MTD] LPDDR qinfo probing.") Signed-off-by: Dan Carpenter Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200228092554.o57igp3nqhyvf66t@kili.mountain Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/lpddr/lpddr_cmds.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/mtd/lpddr/lpddr_cmds.c +++ b/drivers/mtd/lpddr/lpddr_cmds.c @@ -81,7 +81,6 @@ struct mtd_info *lpddr_cmdset(struct map shared = kmalloc(sizeof(struct flchip_shared) * lpddr->numchips, GFP_KERNEL); if (!shared) { - kfree(lpddr); kfree(mtd); return NULL; }