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| author | David Engraf <david.engraf@sysgo.com> | 2011-07-20 15:03:39 +0200 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2011-08-02 10:22:49 +0200 |
| commit | bea1906620ce72b63f83735c4cc2642b25ec54ae (patch) | |
| tree | e96e96e0068ea332a4bb8dd3334f4de8c3d2e7f8 /drivers/watchdog | |
| parent | oom: task->mm == NULL doesn't mean the memory was freed (diff) | |
| download | linux-bea1906620ce72b63f83735c4cc2642b25ec54ae.tar.xz linux-bea1906620ce72b63f83735c4cc2642b25ec54ae.zip | |
watchdog: shwdt: fix usage of mod_timer
Fix the usage of mod_timer() and make the driver usable. mod_timer() must
be called with an absolute timeout in jiffies. The old implementation
used a relative timeout thus the hardware watchdog was never triggered.
Signed-off-by: David Engraf <david.engraf@sysgo.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Wim Van sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable <stable@kernel.org>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/shwdt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c index db84f2322d1a..a267dc078daf 100644 --- a/drivers/watchdog/shwdt.c +++ b/drivers/watchdog/shwdt.c @@ -64,7 +64,7 @@ * misses its deadline, the kernel timer will allow the WDT to overflow. */ static int clock_division_ratio = WTCSR_CKS_4096; -#define next_ping_period(cks) msecs_to_jiffies(cks - 4) +#define next_ping_period(cks) (jiffies + msecs_to_jiffies(cks - 4)) static const struct watchdog_info sh_wdt_info; static struct platform_device *sh_wdt_dev; |