qi-hardware/openwrt-xburst
1
0
Fork 0
mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2025-02-17 15:14:44 +02:00
Code

[lantiq-wdt]

Browse Source 
The enable function was using the global timeout variable for local operations.
This resulted in the value of the global variable being corrupted, thus
breaking the code.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28310 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
blogic 2011-09-26 10:35:51 +00:00
parent 0928dfa0bb
commit 50ecf457b7
1 changed files with 40 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
target/linux/lantiq/patches-3.0/991-fix-wdt-timeout.patch Normal file
View File

@ -0,0 +1,40 @@
From 14ea48a5f5702ddc97425cbe520600e187e14e4a Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 11 Aug 2011 13:58:39 +0200
Subject: [PATCH 03/16] MIPS: lantiq: fix watchdogs timeout handling
The enable function was using the global timeout variable for local operations.
This resulted in the value of the global variable being corrupted, thus
breaking the code.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-mips@linux-mips.org
---
drivers/watchdog/lantiq_wdt.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/watchdog/lantiq_wdt.c
+++ b/drivers/watchdog/lantiq_wdt.c
@@ -51,16 +51,16 @@ static int ltq_wdt_ok_to_close;
static void
ltq_wdt_enable(void)
{
- ltq_wdt_timeout = ltq_wdt_timeout *
+ unsigned long int timeout = ltq_wdt_timeout *
(ltq_io_region_clk_rate / LTQ_WDT_DIVIDER) + 0x1000;
- if (ltq_wdt_timeout > LTQ_MAX_TIMEOUT)
- ltq_wdt_timeout = LTQ_MAX_TIMEOUT;
+ if (timeout > LTQ_MAX_TIMEOUT)
+ timeout = LTQ_MAX_TIMEOUT;
/* write the first password magic */
ltq_w32(LTQ_WDT_PW1, ltq_wdt_membase + LTQ_WDT_CR);
/* write the second magic plus the configuration and new timeout */
ltq_w32(LTQ_WDT_SR_EN | LTQ_WDT_SR_PWD | LTQ_WDT_SR_CLKDIV |
- LTQ_WDT_PW2 | ltq_wdt_timeout, ltq_wdt_membase + LTQ_WDT_CR);
+ LTQ_WDT_PW2 | timeout, ltq_wdt_membase + LTQ_WDT_CR);
}
static void