From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:45372 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751386AbdFZNmP (ORCPT ); Mon, 26 Jun 2017 09:42:15 -0400 Subject: Patch "of: Add check to of_scan_flat_dt() before accessing initial_boot_params" has been added to the 3.18-stable tree To: dev-NTEO@vplace.de, amit.pundir@linaro.org, gregkh@linuxfoundation.org, ralf@linux-mips.org, sergei.shtylyov@cogentembedded.com Cc: , From: Date: Mon, 26 Jun 2017 15:41:10 +0200 Message-ID: <149848447014282@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled of: Add check to of_scan_flat_dt() before accessing initial_boot_params to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: of-add-check-to-of_scan_flat_dt-before-accessing-initial_boot_params.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 3ec754410cb3e931a6c4920b1a150f21a94a2bf4 Mon Sep 17 00:00:00 2001 From: Tobias Wolf Date: Wed, 23 Nov 2016 10:40:07 +0100 Subject: of: Add check to of_scan_flat_dt() before accessing initial_boot_params From: Tobias Wolf commit 3ec754410cb3e931a6c4920b1a150f21a94a2bf4 upstream. An empty __dtb_start to __dtb_end section might result in initial_boot_params being null for arch/mips/ralink. This showed that the boot process hangs indefinitely in of_scan_flat_dt(). Signed-off-by: Tobias Wolf Cc: Sergei Shtylyov Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14605/ Signed-off-by: Ralf Baechle Signed-off-by: Amit Pundir Signed-off-by: Greg Kroah-Hartman --- drivers/of/fdt.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -585,9 +585,12 @@ int __init of_scan_flat_dt(int (*it)(uns const char *pathp; int offset, rc = 0, depth = -1; - for (offset = fdt_next_node(blob, -1, &depth); - offset >= 0 && depth >= 0 && !rc; - offset = fdt_next_node(blob, offset, &depth)) { + if (!blob) + return 0; + + for (offset = fdt_next_node(blob, -1, &depth); + offset >= 0 && depth >= 0 && !rc; + offset = fdt_next_node(blob, offset, &depth)) { pathp = fdt_get_name(blob, offset, NULL); if (*pathp == '/') Patches currently in stable-queue which might be from dev-NTEO@vplace.de are queue-3.18/of-add-check-to-of_scan_flat_dt-before-accessing-initial_boot_params.patch