From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753930AbaEDPld (ORCPT ); Sun, 4 May 2014 11:41:33 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:36016 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753711AbaEDPla (ORCPT ); Sun, 4 May 2014 11:41:30 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Thomas Petazzoni , Jean-Jacques Hiblot , Bjorn Helgaas , Jason Cooper Subject: [PATCH 3.14 063/158] PCI: mvebu: Fix potential issue in range parsing Date: Sun, 4 May 2014 11:39:32 -0400 Message-Id: <20140504154038.511446734@linuxfoundation.org> X-Mailer: git-send-email 1.9.0 In-Reply-To: <20140504154029.975081050@linuxfoundation.org> References: <20140504154029.975081050@linuxfoundation.org> User-Agent: quilt/0.60-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jean-Jacques Hiblot commit 4f4bde1df33bde076f53325bdf2c6430cf85e1bb upstream. The second parameter of of_read_number() is not the index, but a size. As it happens, in this case it may work just fine because of the conversion to u32 and the favorable endianness on this architecture. Fixes: 11be65472a427 ("PCI: mvebu: Adapt to the new device tree layout") Tested-by: Thomas Petazzoni Signed-off-by: Jean-Jacques Hiblot Signed-off-by: Bjorn Helgaas Acked-by: Thomas Petazzoni Acked-by: Jason Cooper Signed-off-by: Greg Kroah-Hartman --- drivers/pci/host/pci-mvebu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/pci/host/pci-mvebu.c +++ b/drivers/pci/host/pci-mvebu.c @@ -797,7 +797,7 @@ static int mvebu_get_tgt_attr(struct dev for (i = 0; i < nranges; i++) { u32 flags = of_read_number(range, 1); - u32 slot = of_read_number(range, 2); + u32 slot = of_read_number(range + 1, 1); u64 cpuaddr = of_read_number(range + na, pna); unsigned long rtype;