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=-10.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 7EA93C43612 for ; Fri, 11 Jan 2019 14:43:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4F09721841 for ; Fri, 11 Jan 2019 14:43:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547217823; bh=680FHC8+R+J36t1bmkZ8SeAabefGiJAHY4hbHt0B0qU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=UxJqWChVS5OH+IWSTT57pMHL7r+/33GHwa6VumMkX/ZV4RA/JtNTeFcnHnP6HKehq O3RQcVV/2AeTRHEgqUp2nJjPburMwKjzbX5rLsv/H7hgAl6nve8HtjgSNUvTZYShyW i2vNqRdNUn66L4JlCLYnTerw+tVLIH7CLmsaxLP8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404445AbfAKOnm (ORCPT ); Fri, 11 Jan 2019 09:43:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:36592 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731160AbfAKOnl (ORCPT ); Fri, 11 Jan 2019 09:43:41 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.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 EC0CD21848; Fri, 11 Jan 2019 14:43:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1547217820; bh=680FHC8+R+J36t1bmkZ8SeAabefGiJAHY4hbHt0B0qU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Zg/RPw10y0fbe4Zm+4M0xMG4j8tGqr0mjofgEB76JlJO4upk4gR03bniGAGiDWwnz WcNqaanCM7Zt5VYTRWcC6VuZQmWm1sp7FYH563ux0jbAugrahfurn+xzuQ54B0jFwe 7bRrvKs4CxOisaspJ4EKDX4jUvrVkLHFupMr6yPA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, YueHaibing , Daniel Mack , Robert Jarzmik , Bartlomiej Zolnierkiewicz , stable@kernel.org Subject: [PATCH 4.20 53/65] video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data" Date: Fri, 11 Jan 2019 15:15:39 +0100 Message-Id: <20190111131103.409320015@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190111131055.331350141@linuxfoundation.org> References: <20190111131055.331350141@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.20-stable review patch. If anyone has any objections, please let me know. ------------------ From: YueHaibing commit 2607391882fca37463187e7f2a9c76dec286947e upstream. 'info->modes' got allocated with devm_kcalloc in of_get_pxafb_display. This gives this error message: ./drivers/video/fbdev/pxafb.c:2238:2-7: WARNING: invalid free of devm_ allocated data Fixes: c8f96304ec8b4 ("video: fbdev: pxafb: switch to devm_* API") Cc: stable@kernel.org [v4.19+] Signed-off-by: YueHaibing Reviewed-by: Daniel Mack Cc: Robert Jarzmik Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Greg Kroah-Hartman --- drivers/video/fbdev/pxafb.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/drivers/video/fbdev/pxafb.c +++ b/drivers/video/fbdev/pxafb.c @@ -2234,10 +2234,8 @@ static struct pxafb_mach_info *of_pxafb_ if (!info) return ERR_PTR(-ENOMEM); ret = of_get_pxafb_mode_info(dev, info); - if (ret) { - kfree(info->modes); + if (ret) return ERR_PTR(ret); - } /* * On purpose, neither lccrX registers nor video memory size can be