From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753593Ab3BDGZg (ORCPT ); Mon, 4 Feb 2013 01:25:36 -0500 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:45544 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753691Ab3BDGZK (ORCPT ); Mon, 4 Feb 2013 01:25:10 -0500 From: HATAYAMA Daisuke Subject: [PATCH 4/4] kdump, oldmem: compare with saved_max_pfn exclusively To: ralf@linux-mips.org, michael@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org, holzheu@linux.vnet.ibm.com, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, vgoyal@in.ibm.com Cc: kexec@lists.infradead.org, linux-kernel@vger.kernel.org Date: Mon, 04 Feb 2013 15:25:07 +0900 Message-ID: <20130204062507.13161.37270.stgit@localhost6.localdomain6> In-Reply-To: <20130204062349.13161.29478.stgit@localhost6.localdomain6> References: <20130204062349.13161.29478.stgit@localhost6.localdomain6> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: HATAYAMA Daisuke --- drivers/char/mem.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/char/mem.c b/drivers/char/mem.c index c6fa3bc..5da737c 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -369,7 +369,7 @@ static ssize_t read_oldmem(struct file *file, char __user *buf, while (count) { pfn = *ppos / PAGE_SIZE; - if (pfn > saved_max_pfn) + if (!(pfn < saved_max_pfn)) return read; offset = (unsigned long)(*ppos % PAGE_SIZE);