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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8D91C433EF for ; Wed, 30 Mar 2022 11:07:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343524AbiC3LJJ (ORCPT ); Wed, 30 Mar 2022 07:09:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241037AbiC3LJG (ORCPT ); Wed, 30 Mar 2022 07:09:06 -0400 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 374B2DF21 for ; Wed, 30 Mar 2022 04:07:22 -0700 (PDT) Received: by mail-pl1-x635.google.com with SMTP id i11so8867350plg.12 for ; Wed, 30 Mar 2022 04:07:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=gZDsx89oNk9ecCZgu7KJS9C8N6zgmIGWjvyPPdJUVi0=; b=TnejDI8s2vmrfhxCxUhC5M3j7UIVNqXIE57QjETShrQX72D2pzHtyrcbdbILuYiPzc 16xnYyTpMWdkkozkXNWU1D9FfFcOBuWAfkzWjfirgrKSh6kRajGOJdb3IhDKHjatNy7q QzskjjJqwYqcDrOE/iTpmbGNY1FE2CX1fAZB44pjK3GfxXw6U6Zp/8X7QiphtwCv0Cnb 9PAmq0U4xkTdYsqOt/svKYyO5h/qnFtvyq8EBH6QPP7IG2cSYgZpP/i46d0/koXKKebg /UPYp3IpqpRGVx+IspqlDWSbnhko80nOHYqj+dvdqKvqzz2HQwg2ZDm9I1lThf1y9vrD 8B2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=gZDsx89oNk9ecCZgu7KJS9C8N6zgmIGWjvyPPdJUVi0=; b=HdcZf6gJECsG9ZXCDW7y+mEzfgpLeBaOdDV9RwaLhdPaS57VVol85v1tASzwCrq8ZL yJiB0PFZuc3xV7ulJu/a2UWvSaSTCjnuqzX5TQa8qjHwP2YMqMCEj9puryt3+bcJqYf5 M+lMwiPuVD0Y1iBT7Xq4EeT+KgsLZzc/xkUB3kjvwc40yb73BW9n+pJmy1fHzTaL4dRg +5DvMritc4vKZoSMziEmkUySjcnhU7SxzsA0V9gL20U6hLQmbWDVnhZgNaHxo98LHi3g 39MWir72G2scWfNn7ZgXPB79wo48JLLt6eRfcuAu24wgK73l1UFBqU7qrojkbqO/97sC ccCQ== X-Gm-Message-State: AOAM533ODaaRBnoM+2AMYVv7Fiuzm60K5Rf43h869QmtQUYk9AMXi/Re 21252q8GdL1Z9U4UNAFu/rlRZdQ/hlqeWzqZ X-Google-Smtp-Source: ABdhPJzoPU/cisSRGMv2i5K+JEagW3tINDP53KoRYg78DmzMZiXCvR1SOGs5ZHpFs6iq/dq7o2zjBA== X-Received: by 2002:a17:902:e549:b0:154:b1f8:cc82 with SMTP id n9-20020a170902e54900b00154b1f8cc82mr34909820plf.82.1648638441528; Wed, 30 Mar 2022 04:07:21 -0700 (PDT) Received: from raspberrypi ([49.166.114.232]) by smtp.gmail.com with ESMTPSA id g12-20020a056a001a0c00b004e1307b249csm23383105pfv.69.2022.03.30.04.07.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Mar 2022 04:07:20 -0700 (PDT) Date: Wed, 30 Mar 2022 12:07:15 +0100 From: Austin Kim To: linux@armlinux.org.uk, rmk+kernel@armlinux.org.uk, arnd@arndb.de Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, austin.kim@lge.com, p4ranlee@gmail.com Subject: [PATCH] arm: kdump: add invalid value check for 'crashkernel=' Message-ID: <20220330110715.GA1534@raspberrypi> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Austin Kim Add invalid value check expression when no crashkernel= or invalid value specified using kdump. Signed-off-by: Austin Kim --- arch/arm/kernel/setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 039feb7cd590..8018d71ccaed 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -1004,7 +1004,8 @@ static void __init reserve_crashkernel(void) total_mem = get_total_mem(); ret = parse_crashkernel(boot_command_line, total_mem, &crash_size, &crash_base); - if (ret) + /* no crashkernel= or invalid value specified */ + if (ret || !crash_size) return; if (crash_base <= 0) { -- 2.20.1