openwrt/target/linux/bcm27xx/patches-5.4/950-1008-watchdog-bcm2835-Ignore-params-after-the-partition-n.patch
Álvaro Fernández Rojas 62b7f5931c bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
2021-02-19 07:17:21 +01:00

30 lines
964 B
Diff

From 118538ed52b7dd927226837094d44a5d1cd14ab7 Mon Sep 17 00:00:00 2001
From: Tim Gover <tim.gover@raspberrypi.org>
Date: Thu, 22 Oct 2020 15:30:55 +0100
Subject: [PATCH] watchdog: bcm2835: Ignore params after the
partition number
Use sscanf to extract the partition number and ignore extra parameters
which are only relevant to other reboot notifiers.
---
drivers/watchdog/bcm2835_wdt.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/watchdog/bcm2835_wdt.c
+++ b/drivers/watchdog/bcm2835_wdt.c
@@ -126,10 +126,12 @@ static int bcm2835_restart(struct watchd
{
struct bcm2835_wdt *wdt = watchdog_get_drvdata(wdog);
- unsigned long long val;
+ unsigned long val;
u8 partition = 0;
- if (data && !kstrtoull(data, 0, &val) && val <= 63)
+ // Allow extra arguments separated by spaces after
+ // the partition number.
+ if (data && sscanf(data, "%lu", &val) && val < 63)
partition = val;
__bcm2835_restart(wdt, partition);